Amiga#Custom chipset

{{Short description|Family of personal computers sold by Commodore}}

{{About|the family of personal computers}}

{{Infobox information appliance

| name = Amiga

| title =

| aka =

| logo = Commodore Amiga logo-03.svg

| image = Amiga500 system.jpg

| caption = The 1987 Amiga 500 was the bestselling model.

| developer =

| manufacturer = Commodore International (until 1994)
Escom AG (1995–1996)
QuikPak (–{{circa|1998}})

| type = Personal computers
Game console (CD32)

| generation =

| releasedate = {{Start date and age|1985|7|23}}

| lifespan =

| discontinued = 1996{{efn|Under Commodore and Escom}}

| unitssold = {{approx}} 4.91 million{{cite web | url=https://www.youtube.com/watch?v=AXCWYKSjHnI | title=Nobody Knows How Many Amigas Commodore Sold | website=YouTube | date=30 August 2024 }}

| unitsshipped =

| media =

| os = AmigaOS on Kickstart

| power =

| soc =

| storage =

| display =

| graphics =

| sound =

| input =

| controllers =

| connectivity =

| platform =

| service =

| dimensions =

| weight =

| topgame =

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| predecessor = {{cslist|Commodore 128|Commodore 64}}

| successor =

| website =

}}

Amiga is a family of personal computers produced by Commodore from 1985 until the company's bankruptcy in 1994, with production by others afterward. The original model is one of a number of mid-1980s computers with 16-bit or 16/32-bit processors, 256 KB or more of RAM, mouse-based GUIs, and significantly improved graphics and audio compared to previous 8-bit systems. These include the Atari ST—released earlier the same year—as well as the Macintosh and Acorn Archimedes. The Amiga differs from its contemporaries through custom hardware to accelerate graphics and sound, including sprites, a blitter, and four channels of sample-based audio. It runs a pre-emptive multitasking operating system called AmigaOS, with a desktop environment called Workbench.

The Amiga 1000, based on the Motorola 68000 microprocessor, was released in July 1985. Production problems kept it from becoming widely available until early 1986.{{cite book |author= |date=2012 |title=Classic Videogame Hardware Genius Guide |url=https://books.google.com/books?id=QZS_gXpshd4C&pg=PT171 |publisher=Imagine Publishing |page=171 |isbn=9781908222220}} While early advertisements cast the computer as an all-purpose business machine, especially with the Sidecar IBM PC compatibility add-on, the Amiga was most commercially successful as a home computer with a range of video games and creative software. The bestselling model, the Amiga 500, was introduced in 1987 along with the more expandable Amiga 2000. The 1990 Amiga 3000 includes a minor update to the graphics hardware via the Enhanced Chip Set also used in subsequent models.

The Amiga established a niche in audio and multimedia. The first music tracker was written for the Amiga, and it became a popular platform for music creation. The 3D rendering packages LightWave 3D, Imagine, and Traces (a predecessor to Blender) originated on the system. The 1990 third-party Video Toaster made the Amiga a comparatively low cost option for video production. In later years, the Amiga started losing market share to IBM PC compatibles and video game consoles, eventually leading to Commodore's bankruptcy in 1994 and the end of Amiga. Commodore is estimated to have sold 4.85 million Amigas. Various groups have since released spiritual successors.

History

{{Main|History of the Amiga}}

= Concept and early development =

Jay Miner joined Atari, Inc. in the 1970s and led development of the Atari Video Computer System's graphics and sound chip, the Television Interface Adaptor.{{cite web |url=https://arstechnica.com/gadgets/2007/07/a-history-of-the-amiga-part-1/3/ |title=A history of the Amiga, part 1: Genesis |website=Ars Technica |first=Jeremy |last=Reimer |date=3 July 2007 |access-date=14 June 2017 |archive-url=https://web.archive.org/web/20170704114247/https://arstechnica.com/gadgets/2007/07/a-history-of-the-amiga-part-1/3/ |archive-date=4 July 2017 |url-status=live |df=dmy-all }} When complete, the team began developing a much more sophisticated set of chips, CTIA, ANTIC, and POKEY, that formed the basis of the Atari 8-bit computers.{{cite web |url=https://arstechnica.com/gadgets/2007/07/a-history-of-the-amiga-part-1/4/ |title=A history of the Amiga, part 1: Genesis |website=Ars Technica |first=Jeremy |last=Reimer |date=3 July 2007 |access-date=14 June 2017 |archive-url=https://web.archive.org/web/20170704114244/https://arstechnica.com/gadgets/2007/07/a-history-of-the-amiga-part-1/4/ |archive-date=4 July 2017 |url-status=live |df=dmy-all }}

With the 8-bit line's launch in 1979, the team once again started looking at a next generation chipset. Nolan Bushnell had sold the company to Warner Communications in 1978, and the new management was much more interested in the existing lines than development of new products that might cut into their sales. Miner wanted to start work with the new Motorola 68000, but management was only interested in another 6502 based system. Miner left the company, and, for a time, the industry.

In 1979, Larry Kaplan left Atari and founded Activision. In 1982, Kaplan was approached by a number of investors who wanted to develop a new game platform. Kaplan hired Miner to run the hardware side of the newly formed company, "Hi-Toro". The system was code-named "Lorraine" in keeping with Miner's policy of giving systems female names, in this case the company president's wife, Lorraine Morse. When Kaplan left the company late in 1982, Miner was promoted to head engineer and the company relaunched as Amiga Corporation.New York Times, 29 August 1984, p. D1

File:boingball.png

The Amiga hardware was designed by Miner, RJ Mical, and Dale Luck.{{cite magazine |title=Cribsheet |magazine=Next Generation|issue=39 |publisher=Imagine Media |date=March 1998|page=22}} A breadboard prototype for testing and development was largely completed by late 1983, and shown at the January 1984 Consumer Electronics Show (CES).Wallich, Paul: [https://spectrum.ieee.org/amiga-the-computer-that-wouldnt-die Amiga: The Computer That Wouldn't Die], spectrum.ieee.org 1 March 2001. Accessed on 3 February 2020.

A further developed version of the system was demonstrated at the June 1984 CES and shown to many companies in hopes of garnering further funding, but found little interest in a market that was in the final stages of the video game crash of 1983.

In March, Atari expressed a tepid interest in Lorraine for its potential use in a games console or home computer tentatively known as the {{vanchor|1850XLD}}. The talks were progressing slowly,New York Times, 29 August 1984, p. D16 and Amiga was running out of money. A temporary arrangement in June led to a $500,000 loan from Atari to Amiga to keep the company going. The terms required the loan to be repaid at the end of the month, otherwise Amiga would forfeit the Lorraine design to Atari.

= Commodore =

By the end of the video game crash of 1983, Warner was desperate to sell Atari. In January 1984, Jack Tramiel resigned from Commodore, taking some Commodore employees to his new company, Tramel Technology. This included a number of the senior technical staff, where they began development of a new 68000-based machine. In June, Tramiel arranged a no-cash deal to take over Atari, reforming Tramel Technology as Atari Corporation.

Commodore was left without a workable path to creating a next-generation home computer, and it offered to fund Amiga development. The two companies were initially arranging a {{US$|long=no|4 million}} license agreement before Commodore offered {{US$|long=no|24 million}} to purchase Amiga outright.{{cite web |url=https://arstechnica.com/gadgets/2007/08/a-history-of-the-amiga-part-3/3/ |title=A history of the Amiga, part 3: The first prototype |website=Ars Technica |first=Jeremy |last=Reimer |date=21 August 2007 |access-date=14 June 2017 |archive-url=https://web.archive.org/web/20170704102904/https://arstechnica.com/gadgets/2007/08/a-history-of-the-amiga-part-3/3/ |archive-date=4 July 2017 |url-status=live |df=dmy-all }}

By late 1984, the prototype breadboard chipset had successfully been turned into integrated circuits, and the system hardware was being readied for production. At this time, the operating system was not ready, and led to a deal to port TRIPOS. TRIPOS was a multitasking system written in BCPL during the 1970s for the PDP-11 minicomputer. This early version was known as AmigaDOS and the GUI as Workbench. The BCPL parts were later rewritten in the C language, and the entire system became AmigaOS.

The system was enclosed in a pizza-box form factor case. A late change was the introduction of vertical supports on either side of the case to provide a "garage" under the main section of the system where the keyboard could be stored.{{cite web |url=https://arstechnica.com/gadgets/2007/10/amiga-history-4-commodore-years/2/ |title=A history of the Amiga, part 4: Enter Commodore |website=Ars Technica |first=Jeremy |last=Reimer |date=10 December 2007 |access-date=14 June 2017 |archive-url=https://web.archive.org/web/20170704100028/https://arstechnica.com/gadgets/2007/10/amiga-history-4-commodore-years/2/ |archive-date=4 July 2017 |url-status=live |df=dmy-all }}

=Launch=

The first model was announced in 1985 as simply "The Amiga from Commodore", later to be retroactively dubbed the Amiga 1000.{{efn|The name "Amiga" was chosen because it is the Spanish word for (female) friend, and alphabetically it appears before Apple in lists of computer makers. It originated as a project code-named "Lorraine", therefore the female was used instead of the male and general version Amigo.}} They were first offered for sale in August, but by October only 50 had been built, all of which were used by Commodore. Machines only began to arrive in quantity in mid-November, meaning they missed the Christmas buying rush.{{cite web |url=https://arstechnica.com/gadgets/2007/12/amiga-history-part-5/ |title=A history of the Amiga, part 5: postlaunch blues |website=Ars Technica |first=Jeremy |last=Reimer |date=21 October 2007 |access-date=14 June 2017 |archive-url=https://web.archive.org/web/20170704092503/https://arstechnica.com/gadgets/2007/12/amiga-history-part-5/ |archive-date=4 July 2017 |url-status=live |df=dmy-all }} By the end of the year, they had sold 35,000 machines, and severe cashflow problems made the company pull out of the January 1986 CES.{{cite web |url=https://arstechnica.com/gadgets/2007/12/amiga-history-part-5/2/ |title=A history of the Amiga, part 5: postlaunch blues |website=Ars Technica |first=Jeremy |last=Reimer |date=21 October 2007 |access-date=14 June 2017 |archive-url=https://web.archive.org/web/20170704101525/https://arstechnica.com/gadgets/2007/12/amiga-history-part-5/2/ |archive-date=4 July 2017 |url-status=live |df=dmy-all }} Bad or entirely missing marketing, forcing the development team to move to the east coast, notorious stability problems and other blunders limited sales in early 1986 to between 10,000 and 15,000 units a month. 120,000 units were reported as having been sold from the machine's launch up to the end of 1986.{{ cite magazine | url=https://archive.org/details/computerworld2124unse/page/39/mode/1up | title=Memory up for Amiga | magazine=Computerworld | last1=Bright | first1=David | date=15 June 1987 | access-date=26 April 2024 | pages=39, 42 }}

= Later models =

In late 1985, Thomas Rattigan was promoted to COO of Commodore, and then to CEO in February 1986. He immediately implemented an ambitious plan that covered almost all of the company's operations. Among these was the long-overdue cancellation of the now outdated PET and VIC-20 lines, as well as a variety of poorly selling Commodore 64 offshoots and the Commodore 900 workstation effort.

Another one of the changes was to split the Amiga into two products, a new high-end version of the Amiga aimed at the creative market, and a cost-reduced version that would take over for the Commodore 64 in the low-end market.{{cite web |url=https://arstechnica.com/gadgets/2008/02/amiga-history-part-6/2/ |title=A history of the Amiga, part 6: stopping the bleeding |website=Ars Technica |first=Jeremy |last=Reimer |date=11 February 2008 |access-date=14 June 2017 |archive-url=https://web.archive.org/web/20170704112950/https://arstechnica.com/gadgets/2008/02/amiga-history-part-6/2/ |archive-date=4 July 2017 |url-status=live |df=dmy-all }} These new designs were released in 1987 as the Amiga 2000 and Amiga 500, the latter of which went on to widespread success and became their best selling model.

Similar high-end/low-end models would make up the Amiga line for the rest of its history; follow-on designs included the Amiga 3000/Amiga 500 Plus/Amiga 600, and the Amiga 4000/Amiga 1200. These models incorporated a series of technical upgrades known as the ECS and AGA, which added higher resolution displays among many other improvements and simplifications.{{Sfn|Loguidice|Barton|2014|pp=162–163}}

The Amiga line sold an estimated 4,910,000 machines over its lifetime.{{cite AV media |url=https://www.youtube.com/watch?v=AXCWYKSjHnI |title=Nobody Knows How Many Amigas Commodore Sold |last=Brown |first=Stuart |work=Ahoy |via=YouTube |date=30 August 2024 |access-date=31 August 2024}}{{Self-published source|date=December 2024}} The machines were most popular in the UK and Germany, with about 1.5 million sold in each country, and sales in the high hundreds of thousands in other European nations. The machine was less popular in North America, where an estimated 700,000 were sold.{{cite web |url=http://www.amigahistory.plus.com/sales.html |title=Commodore-Amiga Sales Figures |first=Gareth |last=Knight |website=Amiga history guide |access-date=2019-01-20 |archive-url=https://web.archive.org/web/20180927041337/http://www.amigahistory.plus.com/sales.html |archive-date=2018-09-27 |url-status=dead }}{{cite web |url=http://xboxahoy.com/downloads/commodore-annual-report-1993.pdf |title="Commodore Annual Report 1993" |website=XboxAhoy |access-date=2024-08-30 }}{{cite magazine |last1=Dyson |first1=Marcus |title=World of Commodore New York |magazine=Amiga Format |date=13 May 1993 |issue=47 (June 1993) |pages=16–7, 20–1 |url=https://archive.org/details/AmigaFormatMagazine_201902/Amiga_Format_Issue_047_1993_06_Future_Publishing_GB/page/n15/mode/2up}} In the United States, the Amiga found a niche with enthusiasts and in vertical markets for video processing and editing.{{cite magazine|title=The Next Generation 1996 Lexicon A to Z|magazine=Next Generation|issue=15 |publisher=Imagine Media|date=March 1996|pages=29–30}} In Europe, it was more broadly popular as a home computer and often used for video games.

Beginning in 1990, the Amiga overlapped with the European release of the 16-bit Mega Drive, then the Super NES in 1992. Commodore UK's Kelly Sumner did not see Sega or Nintendo as competitors, but instead credited their marketing campaigns which spent over {{£|40 million|long=no}} or {{US$|{{To USD|40|GBR|year=1993|round=yes}},000,000|long=no|1993|round=-7}} for promoting video games as a whole and thus helping to boost Amiga sales. Some games were released for both 16-bit consoles and the Amiga, such as Chuck Rock and Zool.

= Bankruptcy and aftermath =

In spite of his successes in making the company profitable and bringing the Amiga line to market, Rattigan was soon forced out in a power struggle with majority shareholder, Irving Gould. This is widely regarded as the turning point, as further improvements to the Amiga were eroded by rapid improvements in other platforms.{{cite web |url=https://arstechnica.com/gadgets/2013/04/a-history-of-the-amiga-part-9-the-demo-scene/2/ |title=A history of the Amiga, part 8: The demo scene |website=Ars Technica |first=Jeremy |last=Reimer |date=28 April 2013 |access-date=14 June 2017 |archive-url=https://web.archive.org/web/20170704093424/https://arstechnica.com/gadgets/2013/04/a-history-of-the-amiga-part-9-the-demo-scene/2/ |archive-date=4 July 2017 |url-status=live |df=dmy-all }}

Commodore shut down the Amiga division on April 26, 1994, and filed for bankruptcy three days later. Commodore's assets were purchased by Escom, a German PC manufacturer, who created the subsidiary company Amiga Technologies. They re-released the A1200 and A4000T, and introduced a new 68060 version of the A4000T. Amiga Technologies researched and developed the Amiga Walker prototype. They presented the machine publicly at CeBit,{{Cite web|url=http://www.amigareport.com/ar405/news13.html|title=The Amiga Walker Prototype|website=www.amigareport.com|access-date=2020-04-10|archive-date=2020-10-27|archive-url=https://web.archive.org/web/20201027210255/https://www.amigareport.com/ar405/news13.html|url-status=dead}}{{cite news |title=German firm will sell Amiga division |work=The Philadelphia Inquirer |date=12 April 1996 |page=41|first=Dan|last=Stets}} but Escom went bankrupt in 1996.{{cite news |last1=Clarke |first1=Roger |title=Amiga's amigos |work=The Birmingham Post |date=9 December 1996 |page=52}}{{cite news |last1=Stebbins |first1=John |title=Amiga users fight final frontier battle |work=The Ottawa Citizen |date=10 February 1997 |page=10}} Some Amigas were still made afterwards for the North American market by QuikPak, a small Pennsylvania-based firm who was the manufacturer of Amigas for Escom.{{Cite web |date=July 10, 1998 |title=THE RETURN OF AMIGA – Chicago Tribune |website=Chicago Tribune |url=https://www.chicagotribune.com/1998/07/10/the-return-of-amiga/ |access-date=2024-09-30 |archive-date=2024-09-23 |archive-url=https://web.archive.org/web/20240923165840/https://www.chicagotribune.com/1998/07/10/the-return-of-amiga/ |url-status=bot: unknown }}

After a reported sale to VisCorp fell through, a U.S. Wintel PC manufacturer, Gateway 2000, eventually purchased the Amiga branch and technology in 1997. QuickPak attempted but failed to license Amiga from Gateway and build new models.{{Cite web |date=1998-12-05 |title=quikpaksite |url=http://www.quikpak.com/page2.html |access-date=2024-09-30 |archive-date=1998-12-05 |archive-url=https://web.archive.org/web/19981205180326/http://www.quikpak.com/page2.html |url-status=bot: unknown }} Gateway was then working on a brand new Amiga platform, likely encouraged by a desire to be independent of Microsoft and Intel. However this did not materialize and in 2000, Gateway sold the Amiga brand to Amiga, Inc., without having released any products. Amiga, Inc. licensed the rights to sell hardware using the AmigaOne brand to Eyetech Group and Hyperion Entertainment. In 2019, Amiga, Inc. sold its intellectual property to Amiga Corporation.{{cite web |url=https://www.amiga-news.de/en/news/AN-2019-02-00009-EN.html|title=Legal dispute: Amiga Inc. transferred rights to Mike Battilana's company|publisher=Amiga-News.de|date=5 February 2019|accessdate=26 July 2022}}{{cite web |url=https://amiga-news.de/en/news/AN-2020-07-00032-EN.html|title=C-A Acquisition Corp. renamed to Amiga Corporation|publisher=Amiga-News.de|date=15 July 2020|accessdate=26 July 2022}}

Hardware

File:Amiga 1000 computer.jpg front and back]]

File:Amiga 600.jpg]]

File:Amiga 1200 with mouse, drives.jpg]]

File:Amiga-CD32-wController-L.jpg]]

The Amiga has a custom chipset consisting of several coprocessors which handle audio, video, and direct memory access independently of the central processing unit (CPU). This architecture gave the Amiga a performance edge over its competitors, particularly for graphics-intensive applications and games.

The architecture uses two distinct bus subsystems: the chipset bus and the CPU bus. The chipset bus allows the coprocessors and CPU to address "Chip RAM". The CPU bus provides addressing to conventional RAM, ROM and the Zorro II or Zorro III expansion subsystems. This enables independent operation of the subsystems. The CPU bus can be much faster than the chipset bus. CPU expansion boards may provide additional custom buses. Additionally, "busboards" or "bridgeboards" may provide ISA or PCI buses.

= Central processing unit =

The most popular models from Commodore, including the Amiga 1000, Amiga 500, and Amiga 2000, use the Motorola 68000 as the CPU. From a developer's point of view, the 68000 provides a full suite of 32-bit operations, but the chip can address only 16 MB of physical memory and is implemented using a 16-bit arithmetic logic unit and has a 16-bit external data bus, so 32-bit computations are transparently handled as multiple 16-bit values at a performance cost. The later Amiga 2500 and the Amiga 3000 models use fully 32-bit, 68000-compatible processors from Motorola with improved performance and larger addressing capability.

CPU upgrades were offered by both Commodore and third-party manufacturers. Most Amiga models can be upgraded either by direct CPU replacement or through expansion boards. Such boards often included faster and higher capacity memory interfaces and hard disk controllers.

Towards the end of Commodore's time in charge of Amiga development, there were suggestions that Commodore intended to move away from the 68000 series to higher performance RISC processors, such as the PA-RISC. Those ideas were never developed before Commodore filed for bankruptcy. Despite this, third-party manufacturers designed upgrades featuring a combination of 68000 series and PowerPC processors along with a PowerPC native microkernel and software. Later Amiga clones featured PowerPC processors only.

= Custom chipset =

The custom chipset at the core of the Amiga design appeared in three distinct generations, with a large degree of backward-compatibility. The Original Chip Set (OCS) appeared with the launch of the A1000 in 1985. OCS was eventually followed by the modestly improved Enhanced Chip Set (ECS) in 1990 and finally by the partly 32-bit Advanced Graphics Architecture (AGA) in 1992. Each chipset consists of several coprocessors that handle graphics acceleration, digital audio, direct memory access and communication between various peripherals (e.g., CPU, memory and floppy disks). In addition, some models featured auxiliary custom chips that performed tasks such as SCSI control and display de-interlacing.

== Graphics ==

File:HAM6example.png picture created with Photon Paint in 1989]]

File:Amiga 2000 Wikipedia logo.jpg on a Commodore 1084 monitor]]

All Amiga systems can display full-screen animated planar graphics with 2, 4, 8, 16, 32, 64 (EHB Mode), or 4096 colors (HAM Mode). Models with the AGA chipset (A1200 and A4000) also have non-EHB 64, 128, 256, and 262144 (HAM8 Mode) color modes and a palette expanded from 4096 to 16.8 million colors.

The Amiga chipset can genlock, which is the ability to adjust its own screen refresh timing to match an incoming NTSC or PAL video signal. When combined with setting transparency, this allows an Amiga to overlay an external video source with graphics. This ability made the Amiga popular for many applications, and provides the ability to do character generation and CGI effects far more cheaply than earlier systems. This ability has been frequently utilized by wedding videographers, TV stations and their weather forecasting divisions (for weather graphics and radar), advertising channels, music video production, and desktop videographers. The NewTek Video Toaster was made possible by the genlock ability of the Amiga.

In 1988, the release of the Amiga A2024 fixed-frequency monochrome monitor with built-in framebuffer and flicker fixer hardware provided the Amiga with a choice of high-resolution graphic modes (1008×800 for NTSC and 1008×1024 for PAL) with 4 Grayscale levels.{{Cite web |title=COMMODORE-AMIGA A2024 HIGH RESOLUTION MONITOR USER'S GUIDE |url=https://www.infania.net/misc/gona/Commodore/monitor/manuals/Commodore_A2024_High_Resolution_Monitor_Users_Guide.pdf |website=www.infania.net}}

== ReTargetable Graphics ==

{{Main|ReTargetable Graphics}}

ReTargetable Graphics is an API for device drivers mainly used by 3rd party graphics hardware to interface with AmigaOS via a set of libraries. The software libraries may include software tools to adjust resolution, screen colors, pointers and screenmodes. The standard Intuition interface is limited to display depths of 8 bits, while RTG makes it possible to handle higher depths like 24-bits.

== Sound ==

The sound chip, named Paula, supports four PCM sound channels (two for the left speaker and two for the right) with 8-bit resolution for each channel and a 6-bit volume control per channel. The analog output is connected to a low-pass filter, which filters out high-frequency aliasing when the Amiga is using a lower sampling rate (see Nyquist frequency). The brightness of the Amiga's power LED is used to indicate the status of the Amiga's low-pass filter. The filter is active when the LED is at normal brightness, and deactivated when dimmed (or off on older A500 Amigas). On Amiga 1000 (and first Amiga 500 and Amiga 2000 model), the power LED had no relation to the filter's status, and a wire needed to be manually soldered between pins on the sound chip to disable the filter. Paula can read arbitrary waveforms at arbitrary rates and amplitudes directly from the system's RAM, using direct memory access (DMA), making sound playback without CPU intervention possible.

Although the hardware is limited to four separate sound channels, software such as OctaMED uses software mixing to allow eight or more virtual channels, and it was possible for software to mix two hardware channels to achieve a single 14-bit resolution channel by playing with the volumes of the channels in such a way that one of the source channels contributes the most significant bits and the other the least.

The quality of the Amiga's sound output, and the fact that sound hardware is part of the standard chipset and easily addressed by software, were standout features of Amiga hardware unavailable on IBM PC compatibles for years.{{efn|The Gravis UltraSound expansion card got released in 1992 and became the first on the PC platform to feature multiple sample sound channels (up to 32) mixed in hardware from its own RAM.}} Third-party sound cards exist that provide DSP functions{{citation needed|date=March 2021}}, multi-track direct-to-disk recording{{citation needed|date=March 2021}}, multiple hardware sound channels and 16-bit and beyond resolutions. A retargetable sound API called AHI was developed allowing these cards to be used transparently by the OS and software.{{cite magazine |last=Březovský|first=Boleslav |url=http://amigareview.amiga.sk/amiga-review-24/ahi-audio-system|date=January 1997|title=AHI Audio System|language=Czech|magazine=Amiga Review|publisher=Atlantida Publishing|issn=1211-1465|issue=24|pages=18–19}}

= Kickstart firmware =

{{Main|Kickstart (Amiga)}}

Kickstart is the firmware upon which AmigaOS is bootstrapped. Its purpose is to initialize the Amiga hardware and core components of AmigaOS and then attempt to boot from a bootable volume, such as a floppy disk or hard disk drive. Most models (excluding the Amiga 1000) come equipped with Kickstart on an embedded ROM-chip.

There are various editions of Kickstart ROMs starting with Kickstart v1.1 for the Amiga 1000, v1.2 and v1.3 for the A500, Kickstart v2.1 on A500+, Kickstart v2.2 for A600 and dual ROMs for Kickstart v3.0 and 3.1 for A1200 and A4000. After Commodore's demise there have been new Kickstart v3.1 ROMs made available for both the A500 and A600 Computers. Amiga Software is mostly backward compatible, but v2.1 ROMs and newer differ slightly, which can cause software glitches with earlier programs. To help address this and to get earlier programs to work with later Kickstart ROMs, some tools have been produced such as RELOKIK 1.4 and MAKE IT WORK! for the A600 and A1200. They revert the system to temporarily boot in Kickstart v1.3.

= Keyboard and mouse =

File:Amiga Mouse.jpg

The keyboard on Amiga computers is similar to that found on a mid-80s IBM PC: Ten function keys, a numeric keypad, and four separate directional arrow keys. Caps Lock and Control share space to the left of A. Absent are Home, End, Page Up, and Page Down keys: These functions are accomplished on Amigas by pressing shift and the appropriate arrow key. The Amiga keyboard adds a Help key, which a function key usually acts as on PCs (usually F1). In addition to the Control and Alt modifier keys, the Amiga has 2 "Amiga" keys, rendered as "Open Amiga" and "Closed Amiga" similar to the Open/Closed Apple logo keys on Apple II keyboards. The left is used to manipulate the operating system (moving screens and the like) and the right delivers commands to the application. The absence of Num lock frees space for more mathematical symbols around the numeric pad.

Like IBM-compatible computers, the mouse has two buttons, but in AmigaOS, pressing and holding the right button replaces the system status line at the top of the screen with a Maclike menu bar. As with Apple's Mac OS prior to Mac OS 8, menu options are selected by releasing the button over that option, not by left clicking. Menu items that have a Boolean toggle state can be left clicked whilst the menu is kept open with the right button, which allows the user – for example – to set some selected text to bold, underline and italics in one visit to the menus.

The mouse plugs into one of two Atari joystick ports used for joysticks, game paddles, and graphics tablets. Although compatible with analog joysticks, Atari-style digital joysticks became standard.{{cite news | url=https://archive.org/stream/1987-10-compute-magazine/Compute_Issue_089_1987_Oct#page/n17/mode/2up | title=Close Up: The Amiga 500 | work=Compute! | date=October 1987 | access-date=18 January 2015 | author=Anderson, Rhett | pages=16–19 | archive-url=https://web.archive.org/web/20141204185248/http://archive.org/stream/1987-10-compute-magazine/Compute_Issue_089_1987_Oct#page/n17/mode/2up | archive-date=4 December 2014 | url-status=live | df=dmy-all }} Unusually, two independent mice can be connected to the joystick ports; some games, such as Lemmings, were designed to take advantage of this.{{cite magazine|url=https://www.wired.com/2007/05/gallery-amiga0411|title=Top 10 Most Influential Amiga Games|magazine=Wired|date=2007-05-11|access-date=2022-07-01|archive-url=https://web.archive.org/web/20220701033346/https://www.wired.com/2007/05/gallery-amiga0411/|archive-date=2022-07-01|url-status=live}}

= Other peripherals and expansions =

File:Amiga Sound Sampling Hardware.jpg

The Amiga was one of the first computers for which inexpensive sound sampling and video digitization accessories were available. As a result of this and the Amiga's audio and video capabilities, the Amiga became a popular system for editing and producing both music and video.

Many expansion boards were produced for Amiga computers to improve the performance and capability of the hardware, such as memory expansions, SCSI controllers, CPU boards, and graphics boards. Other upgrades include genlocks, network cards for Ethernet, modems, sound cards and samplers, video digitizers, extra serial ports, and IDE controllers. Additions after the demise of Commodore company are USB cards. The most popular upgrades were memory, SCSI controllers and CPU accelerator cards. These were sometimes combined into one device.

Early CPU accelerator cards used the full 32-bit CPUs of the 68000 family such as the Motorola 68020 and Motorola 68030, almost always with 32-bit memory and usually with FPUs and MMUs or the facility to add them. Later designs feature the Motorola 68040 or Motorola 68060. Both CPUs feature integrated FPUs and MMUs. Many CPU accelerator cards also had integrated SCSI controllers.

Phase5 designed the PowerUP boards (Blizzard PPC and CyberStorm PPC) featuring both a 68k (a 68040 or 68060) and a PowerPC (603 or 604) CPU, which are able to run the two CPUs at the same time and share the system memory. The PowerPC CPU on PowerUP boards is usually used as a coprocessor for heavy computations; a powerful CPU is needed to run MAME for example, but even decoding JPEG pictures and MP3 audio was considered heavy computation at the time. It is also possible to ignore the 68k CPU and run Linux on the PPC via project Linux APUS, but a PowerPC-native AmigaOS promised by Amiga Technologies GmbH was not available when the PowerUP boards first appeared.

24-bit graphics cards and video cards were also available. Graphics cards were designed primarily for 2D artwork production, workstation use, and later, gaming. Video cards are designed for inputting and outputting video signals, and processing and manipulating video.

In the North American market, the NewTek Video Toaster was a video effects board that turned the Amiga into an affordable video processing computer that found its way into many professional video environments. One well-known use was to create the special effects in early series of Babylon 5.{{cite web |url=http://www.geek.com/games/cgi-first-introduced-to-tv-in-babylon-5-by-mit-presentor-771051/ |work=geek.com |title=CGI first introduced to TV in Babylon 5 by MIT presentor {{sic|nolink=y}} |access-date=2014-02-15 |archive-url=https://web.archive.org/web/20140222172408/http://www.geek.com/games/cgi-first-introduced-to-tv-in-babylon-5-by-mit-presentor-771051/ |archive-date=2014-02-22 |url-status=live }} Due to its NTSC-only design, it did not find a market in countries that used the PAL standard, such as in Europe. In those countries, the OpalVision card was popular, although less featured and supported than the Video Toaster. Low-cost time base correctors (TBC) specifically designed to work with the Toaster quickly came to market, most of which were designed as standard Amiga bus cards.

Various manufacturers started producing PCI busboards for the A1200, A3000 and A4000, allowing standard Amiga computers to use PCI cards such as graphics cards, Sound Blaster sound cards, 10/100 Ethernet cards, USB cards, and television tuner cards. Other manufacturers produced hybrid boards that contained an Intel x86 series chip, allowing the Amiga to emulate a PC.

PowerPC upgrades with Wide SCSI controllers, PCI busboards with Ethernet, sound and 3D graphics cards, and tower cases allowed the A1200 and A4000 to survive well into the late nineties.

Expansion boards were made by Richmond Sound Design that allow their show control and sound design software to communicate with their custom hardware frames either by ribbon cable or fiber optic cable for long distances, allowing the Amiga to control up to eight million digitally controlled external audio, lighting, automation, relay and voltage control channels spread around a large theme park, for example. See Amiga software for more information on these applications.

Other devices included the following:

  • Amiga 501 with 512 KB RAM and real-time clock
  • Trumpcard 500 Zorro-II SCSI interface
  • GVP A530 Turbo, accelerator, RAM expansion, PC emulator
  • A2091 / A590 SCSI hard disk controller + 2 MB RAM expansion
  • A3070 SCSI tape backup unit with a capacity of {{nowrap|250 MB}}, OEM Archive Viper 1/4-inch
  • A2065 Ethernet Zorro-II interface – the first Ethernet interface for Amiga; uses the AMD Am7990 chip The same interface chip is used in DECstation as well.
  • Ariadne Zorro-II Ethernet interface using the AMD Am7990
  • A4066 Zorro II Ethernet interface using the SMC 91C90QF
  • X-Surf from Individual Computers using the Realtek 8019AS
  • A2060 Arcnet
  • A1010 floppy disk drive consisting of a 3.5-inch double density (DD), {{nowrap|300 rpm}}, {{nowrap|250 kbit/s}} drive unit connected via DB-23 connector; track-to-track delay is on the order of {{nowrap|~94 ms}}. The default capacity is {{nowrap|880 KB}}. Many clone drives were available, and products such as the Catweasel and KryoFlux make it possible to read and write Amiga and other special disc formats on standard x86 PCs.
  • NE2000-compatible PCMCIA Ethernet cards for Amiga 600 and Amiga 1200

== Serial ports ==

The Commodore A2232 board provides seven RS-232C serial ports in addition to the Amiga's built-in serial port. Each port can be driven independently at speeds of 50 to {{nowrap|19,200 bits/s}}. There is, however, a driver available on Aminet that allows two of the serial ports to be driven at {{nowrap|115,200 bits/s}}.{{cite web|title=Big Book of Amiga Hardware - Commodore: A2232|url=http://www.bboah.com/index.php?action=artikel&cat=58&id=2464&artlang=en|date=2009-01-25|access-date=2013-06-21|publisher=bboah.com|archive-url=https://web.archive.org/web/20131104033651/http://www.bboah.com/index.php?action=artikel&cat=58&id=2464&artlang=en|archive-date=2013-11-04|url-status=live}} The serial card used the 65CE02 CPU{{cite web|title=a2232_big.jpg|url=http://www.bboah.com/download_photos/a2232_big.jpg|date=2008-08-01|access-date=2013-06-21|publisher=bboah.com|archive-url=https://web.archive.org/web/20131104034054/http://www.bboah.com/download_photos/a2232_big.jpg|archive-date=2013-11-04|url-status=dead}} clocked at {{nowrap|3.58 MHz}}. This CPU was also part of the CSG 4510 CPU core that was used in the Commodore 65 computer.

== Networking ==

Amiga has three networking interface APIs:

  • AS225: the official Commodore TCP/IP stack API with hard-coded drivers in revision 1 (AS225r1) for the A2065 Ethernet and the A2060 Arcnet interfaces. In revision 2, (AS225r2) the SANA-II interface was used.
  • SANA-II: a standardized API for hardware of network interfaces. It uses an inefficient buffer handling scheme, and lacks proper support for promiscuous and multicast modes.
  • Miami Network Interface (MNI): an API that doesn't have the problems that SANA-II suffers from. It requires AmigaOS v2.04 or higher.

Different network media were used:

class="wikitable sortable"
TypeSpeedExample

| Ethernet

| style="text-align:right;"| {{ntsh|10000}} {{nowrap|10,000 kbit/s}}

| A2065{{cite web|title=Commodore: A2065 |url=http://www.amiga-hardware.com/showhardware.cgi?HARDID=905 |url-status=dead |archive-url=https://web.archive.org/web/20130120150722/http://www.amiga-hardware.com/showhardware.cgi?HARDID=905 |archive-date=2013-01-20 }} 090428 amiga-hardware.com

ARCNET

| style="text-align:right;"| {{ntsh|2500}} {{nowrap|2,500 kbit/s}}

| A560, A2060

Floppy disk controller

| style="text-align:right;"| {{ntsh|250}} {{nowrap|250 kbit/s}}

| Amitrix: Amiga-Link

Serial port

| style="text-align:right;"| {{ntsh|115}} {{nowrap|≤ 115.2 kbit/s}}

| RS-232

Parallel port

| style="text-align:right;"| {{ntsh|1600}} ≈1,600 kbit/s{{original research inline|date=August 2012}}

| Village Tronic: Liana

Token Ring

| style="text-align:right;"| {{ntsh|1500}} 1,500 kbit/s

| Nine Tiles: AmigaLink (9 Tiles)

AppleTalk / LocalTalk

| style="text-align:right;"| {{ntsh|230}} 230.4 – {{nowrap|460 kbit/s}}

| PPS-Doubletalk

Models and variants

{{Main|List of Amiga models and variants}}

The original Amiga models were produced from 1985 to 1996. They are, in order of production: 1000, 2000, 500, 1500, 2500, 3000, 3000UX, 3000T, CDTV, 500+, 600, 4000, 1200, CD32, and 4000T. The PowerPC-based AmigaOne computers were later marketed beginning in 2002. Several companies and private persons have also released Amiga clones and still do so today.

= Commodore Amiga =

File:Amiga 1000DP.jpg (1985) was the first model released.]]

The first Amiga model, the Amiga 1000, was launched in 1985. In 2006, PC World rated the Amiga 1000 as the seventh greatest PC of all time, stating "Years ahead of its time, the Amiga was the world's first multimedia, multitasking personal computer".

Commodore updated the desktop line of Amiga computers with the Amiga 2000 in 1987, the Amiga 3000 in 1990, and the Amiga 4000 in 1992, each offering improved capabilities and expansion options. The best-selling models were the budget models, however, particularly the highly successful Amiga 500 (1987) and the Amiga 1200 (1992). The Amiga 500+ (1991) was the shortest-lived model, replacing the Amiga 500 and lasting only six months until it was phased out and replaced with the Amiga 600 (1992). The A600 was only intended as a temporary gap filler until the A1200 was available for sale. The A600 was actually designed as a portable system, hence the lack of numeric Keypad, and it was originally to be named Amiga 300. Some early A600 models have retained the original A300 logo printed on the mainboard. The Amiga 600 was quickly replaced by the Amiga 1200.

The CDTV, launched in 1991, was a CD-ROM-based game console, Computer and multimedia appliance based on the Amiga A500 with the same v1.3 Kickstart ROM, several years before CD-ROM drives were common. The cost of CDTV media production and the CD-ROM drives at the time discouraged potential buyers and the system never achieved any real success. The CDTV was however one of the first ever CD-ROM-based machines that were mass-produced. A CDTV legacy is the external A570 CD-ROM drive expansion for the A500 computer.

Commodore's last Amiga offering before filing for bankruptcy was the Amiga CD32 (1993), a 32-bit CD-ROM games console produced until mid 1994. Although discontinued after Commodore's demise it met with moderate commercial success in Europe. The CD32 was a next-generation CDTV, and it was designed and released by Commodore before the PlayStation. It was Commodore's last attempt to enter the ever growing video-game console market.

Following purchase of Commodore's assets by Escom in 1995, the A1200 and A4000T continued to be sold in small quantities until 1996, though the ground lost since the initial launch and the prohibitive expense of these units meant that the Amiga line never regained any real popularity.

Several Amiga models contained references to songs by the rock band The B-52's. Early A500 units had the words "B52/ROCK LOBSTER" silk-screen printed onto their printed circuit board, a reference to the song "Rock Lobster" The Amiga 600 referenced "JUNE BUG" (after the song "Junebug") and the Amiga 1200 had "CHANNEL Z" (after "Channel Z"), and the CD-32 had "Spellbound."

= AmigaOS 4 systems =

{{Main|AmigaOS 4}}

AmigaOS 4 is designed for PowerPC Amiga systems. It is mainly based on AmigaOS 3.1 source code, with some parts of version 3.9. Currently runs on both Amigas equipped with CyberstormPPC or BlizzardPPC accelerator boards, on the Teron series based AmigaOne computers built by Eyetech under license by Amiga, Inc., on the Pegasos II from Genesi/bPlan GmbH, on the ACube Systems Srl Sam440ep / Sam460ex / AmigaOne 500 systems and on the A-EON AmigaOne X1000.

AmigaOS 4.0 had been available only in developer pre-releases for numerous years until it was officially released in December 2006. Due to the nature of some provisions of the contract between Amiga Inc. and Hyperion Entertainment (the Belgian company that is developing the OS), the commercial AmigaOS 4 had been available only to licensed buyers of AmigaOne motherboards.

AmigaOS 4.0 for Amigas equipped with PowerUP accelerator boards was released in November 2007. Version 4.1 was released in August 2008 for AmigaOne systems, and in May 2011 for Amigas equipped with PowerUP accelerator boards. The most recent release of AmigaOS for all supported platforms is 4.1 update 5. Starting with release 4.1 update 4 there is an Emulation drawer containing official AmigaOS 3.x ROMs (all classic Amiga models including CD32) and relative Workbench files.

Acube Systems entered an agreement with Hyperion under which it has ported AmigaOS 4 to its Sam440ep and Sam460ex line of PowerPC-based motherboards. In 2009 a version for Pegasos II was released in co-operation with Acube Systems. In 2012, A-EON Technology Ltd manufactured and released the AmigaOne X1000 to consumers through their partner, Amiga Kit who provided end-user support, assembly and worldwide distribution of the new system.

= Amiga hardware clones =

Long-time Amiga developer MacroSystem entered the Amiga-clone market with their DraCo non-linear video editing system. It appears in two versions, initially a tower model and later a cube. DraCo expanded upon and combined a number of earlier expansion cards developed for Amiga (VLabMotion, Toccata, WarpEngine, RetinaIII) into a true Amiga-clone powered by the Motorola 68060 processor. The DraCo can run AmigaOS 3.1 up through AmigaOS 3.9. It is the only Amiga-based system to support FireWire for video I/O. DraCo also offers an Amiga-compatible Zorro-II expansion bus and introduced a faster custom DraCoBus, capable of {{nowrap|30 MB/sec}} transfer rates (faster than Commodore's Zorro-III). The technology was later used in the Casablanca system, a set-top-box also designed for non-linear video editing.

In 1998, Index Information released the Access, an Amiga-clone similar to the Amiga 1200, but on a motherboard that could fit into a standard {{fraction|5|1|4}}-inch drive bay. It features either a 68020 or 68030 CPU, with a AGA chipset, and runs AmigaOS 3.1.

In 1998, former Amiga employees (John Smith, Peter Kittel, Dave Haynie and Andy Finkel to mention few) formed a new company called PIOS. Their hardware platform, PIOS One, was aimed at Amiga, Atari and Macintosh users. The company was renamed to Met@box in 1999 until it folded.

The NatAmi (short for Native Amiga) hardware project began in 2005 with the aim of designing and building an Amiga clone motherboard that is enhanced with modern features. The NatAmi motherboard is a standard Mini-ITX-compatible form factor computer motherboard, powered by a Motorola/Freescale 68060 and its chipset. It is compatible with the original Amiga chipset, which has been inscribed on a programmable FPGA Altera chip on the board. The NatAmi is the second Amiga clone project after the Minimig motherboard, and its history is very similar to that of the C-One mainboard developed by Jeri Ellsworth and Jens Schönfeld. From a commercial point of view, Natami's circuitry and design are currently closed source.{{Citation needed|date=June 2011}} One goal of the NatAmi project is to design an Amiga-compatible motherboard that includes up-to-date features but that does not rely on emulation (as in WinUAE), modern PC Intel components, or a modern PowerPC mainboard. As such, NatAmi is not intended to become another evolutionary heir to classic Amigas, such as with AmigaOne or Pegasos computers. This "purist" philosophy essentially limits the resulting processor speed but puts the focus on bandwidth and low latencies. The developers also recreated the entire Amiga chipset, freeing it from legacy Amiga limitations such as two megabytes of audio and video graphics RAM as in the AGA chipset, and rebuilt this new chipset by programming a modern FPGA Altera Cyclone IV chip. Later, the developers decided to create from scratch a new software-form processor chip, codenamed "N68050" that resides in the physical Altera FPGA programmable chip.

In 2006, two new Amiga clones were announced, both using FPGA-based hardware synthesis to replace the Amiga OCS custom chipset. The first, the Minimig, is a personal project of Dutch engineer Dennis van Weeren. Referred to as "new Amiga hardware", the original model was built on a Xilinx Spartan-3 development board, but soon a dedicated board was developed. The minimig uses the FPGA to reproduce the custom Denise, Agnus, Paula and Gary chips as well as both 8520 CIAs and implements a simple version of Amber. The rest of the chips are an actual 68000 CPU, ram chips, and a PIC microcontroller for BIOS control. The design for Minimig was released as open-source on July 25, 2007. In February 2008, an Italian company Acube Systems began selling Minimig boards. A third party upgrade replaces the PIC microcontroller with a more powerful ARM processor, providing more functionality such as write access and support for hard disk images. The Minimig core has been ported to the FPGArcade "Replay" board. The Replay uses an FPGA with about three times more capacity and that does support the AGA chipset and a 68020 soft core with 68030 capabilities. The Replay board is designed to implement many older computers and classic arcade machines.

The second is the Clone-A system announced by Individual Computers. As of mid-2007 it has been shown in its development form, with FPGA-based boards replacing the Amiga chipset and mounted on an Amiga 500 motherboard.

Operating systems

= AmigaOS =

File:AmigaOne X1000 02.jpg

{{Main|AmigaOS}}

AmigaOS is a single-user multitasking operating system. It was one of the first commercially available consumer operating systems for personal computers to implement preemptive multitasking. It was developed first by Commodore International and initially introduced in 1985 with the Amiga 1000. John C. Dvorak wrote in PC Magazine in 1996: {{blockquote|[AmigaOS] remains one of the great operating systems of the past 20 years, incorporating a small kernel and tremendous multitasking capabilities the likes of which have only recently been developed in OS/2 and Windows NT. The biggest difference is that the AmigaOS could operate fully and multitask in as little as {{nowrap|250 K}} of address space.}}

AmigaOS combines a command-line interface and graphical user interface. AmigaDOS is the disk operating system and command line portion of the OS and Workbench the native graphical windowing, graphical environment for file management and launching applications. AmigaDOS allows long filenames (up to 107 characters) with whitespace and does not require filename extensions. The windowing system and user interface engine that handles all input events is called Intuition.

The multi-tasking kernel is called Exec. It acts as a scheduler for tasks running on the system, providing pre-emptive multitasking with prioritised round-robin scheduling. It enabled true pre-emptive multitasking in as little as 256 KB of free memory.

AmigaOS does not implement memory protection; the 68000 CPU does not include a memory management unit. Although this speeds and eases inter-process communication because programs can communicate by simply passing a pointer back and forth, the lack of memory protection made the AmigaOS more vulnerable to crashes from badly behaving programs than other multitasking systems that did implement memory protection,{{cite book|url=https://books.google.com/books?id=Lr8ldHhh_wsC&pg=PA74 |title=Tech Book 1 - Published articles Oct 2006 - June 2008 - Michael Reed - Google Boeken |publisher=Michael Reed |isbn=9780956081315 |access-date=2013-07-24}} and Amiga OS is fundamentally incapable of enforcing any form of security model since any program had full access to the system. A co-operational memory protection feature was implemented in AmigaOS 4 and could be retrofitted to old AmigaOS systems using Enforcer or CyberGuard tools.

The problem was somewhat exacerbated by Commodore's initial decision to release documentation relating not only to the OS's underlying software routines,{{Citation needed|reason=says who?|date=September 2020}} but also to the hardware itself, enabling intrepid programmers who had developed their skills on the Commodore 64 to POKE the hardware directly, as was done on the older platform. While the decision to release the documentation was a popular one and allowed the creation of fast, sophisticated sound and graphics routines in games and demos, it also contributed to system instability{{Citation needed|reason=When and where|date=September 2020}}as some programmers lacked the expertise to program at this level. For this reason, when the new AGA chipset was released, Commodore declined to release low-level documentation in an attempt to force developers into using the approved software routines.{{Citation needed|reason=this should be easy to document in press releases, etc.|date=September 2020}}

The latest version for the PPC Amigas is the AmigaOS 4.1 and for the 68k Amigas is the AmigaOS 3.2.2

== Influence on other operating systems ==

AmigaOS directly or indirectly inspired the development of various operating systems. MorphOS and AROS clearly inherit heavily from the structure of AmigaOS as explained directly in articles regarding these two operating systems. AmigaOS also influenced BeOS, which featured a centralized system of Datatypes, similar to that present in AmigaOS. Likewise, DragonFly BSD was also inspired by AmigaOS as stated by Dragonfly developer Matthew Dillon who is a former Amiga developer. WindowLab and amiwm are among several window managers for the X Window System seek to mimic the Workbench interface. IBM licensed the Amiga GUI from Commodore in exchange for the REXX language license. This allowed OS/2 to have the WPS (Workplace Shell) GUI shell for OS/2 2.0, a 32-bit operating system.{{Cite web|url=http://www.os2bbs.com/os2news/OS2Warp.html|archive-url=https://web.archive.org/web/20121020022353/http://www.os2bbs.com/os2news/OS2Warp.html|url-status=dead|title=OS/2 News, OS/2 BBS|archive-date=October 20, 2012}}{{cite web |author=Doug McIlroy |url=http://www.catb.org/esr/writings/taoup/html/ch03s02.html#os_2 |title=OS/2 Eric S. Raymond Operating System Comparisons The Art of Unix Programming |publisher=Catb.org |access-date=2013-07-24 |archive-url=https://web.archive.org/web/20130520104032/http://www.catb.org/esr/writings/taoup/html/ch03s02.html#os_2 |archive-date=2013-05-20 |url-status=live }}

= Unix and Unix-like systems =

Commodore-Amiga produced Amiga Unix, informally known as Amix, based on AT&T SVR4. It supports the Amiga 2500 and Amiga 3000 and is included with the Amiga 3000UX. Among other unusual features of Amix is a hardware-accelerated windowing system that can scroll windows without copying data. Amix is not supported on the later Amiga systems based on 68040 or 68060 processors.

Other, still maintained, operating systems are available for the classic Amiga platform, including Linux and NetBSD. Both require a CPU with MMU such as the 68020 with 68851 or full versions of the 68030, 68040 or 68060. There is also a version of Linux for Amigas with PowerPC accelerator cards. Debian and Yellow Dog Linux can run on the AmigaOne.

There is an official, older version of OpenBSD. The last Amiga release is 3.2. MINIX 1.5.10 also runs on Amiga.

= Emulating other systems =

{{Main|Emulation on the Amiga}}

The Amiga Sidecar is a complete IBM PC XT compatible computer contained in an expansion card. It was released by Commodore in 1986 and promoted as a way to run business software on the Amiga 1000.

Amiga software

{{Main|Amiga software}}

In the late 1980s and early 1990s the platform became particularly popular for gaming, demoscene activities and creative software uses. During this time commercial developers marketed a wide range of games and creative software, often developing titles simultaneously for the Atari ST due to the similar hardware architecture. Popular creative software included 3D rendering (ray-tracing) packages, bitmap graphics editors, desktop video software, software development packages and "tracker" music editors.

Until the late 1990s the Amiga remained a popular platform for non-commercial software, often developed by enthusiasts, and much of which was freely redistributable. An on-line archive, Aminet, was created in 1991 and until the late-1990s was the largest public archive of software, art and documents for any platform.{{Sfn|Maher|2012|p=267}}

Marketing

File:Commodore Amiga US Logo.svg

File:Recent Amiga.svg

The name Amiga was chosen by the developers from the Spanish word for a female friend, because they knew Spanish, and because it occurred before Apple and Atari alphabetically. It also conveyed the message that the Amiga computer line was "user friendly" as a pun or play on words.

The first official Amiga logo was a rainbow-colored double check mark. In later marketing material Commodore largely dropped the checkmark and used logos styled with various typefaces. Although it was never adopted as a trademark by Commodore, the "Boing Ball" has been synonymous with Amiga since its launch. It became an unofficial and enduring theme after a visually impressive animated demonstration at the 1984 Winter Consumer Electronics Show in January 1984 showing a checkered ball bouncing and rotating. Following Escom's purchase of Commodore in 1996, the Boing Ball theme was incorporated into a new logo.

Early Commodore advertisements attempted to cast the computer as an all-purpose business machine, though the Amiga was most commercially successful as a home computer. Throughout the 1980s and early 1990s Commodore primarily placed advertising in computer magazines and occasionally in national newspapers and on television.

Legacy

Since the demise of Commodore, various groups have marketed successors to the original Amiga line:

  • Genesi sold PowerPC based hardware under the Pegasos brand running AmigaOS and MorphOS;
  • Eyetech sold PowerPC based hardware under the AmigaOne brand from 2002 to 2005 running AmigaOS 4;
  • Amiga Kit distributes and sells PowerPC based hardware under the AmigaOne brand from 2010 to present day running AmigaOS 4;
  • ACube Systems sells the AmigaOS 3 compatible Minimig system with a Freescale MC68SEC000 CPU (Motorola 68000 compatible) and AmigaOS 4 compatible Sam440 / Sam460 / AmigaOne 500 systems with PowerPC processors;
  • A-EON Technology Ltd sells the AmigaOS 4 compatible AmigaOne X1000 system with P.A. Semi PWRficient PA6T-1682M processor, X5000 and A1222+ computers.
  • AmigaKit Ltd produce the A600GS and A1200NG computers systems. They also manufacture and sell a wide range of aftermarket components to refurbished classic systems.
  • ASB Computer Spain sell numerous items from aftermarket components to refurbished classic systems.

AmigaOS and MorphOS are commercial proprietary operating systems. AmigaOS 4, based on AmigaOS 3.1 source code with some parts of version 3.9, is developed by Hyperion Entertainment and runs on PowerPC based hardware. MorphOS, based on some parts of AROS source code, is developed by MorphOS Team and is continued on Apple and other PowerPC based hardware.

There is also AROS, a free and open source operating system (re-implementation of the AmigaOS 3.1 APIs), for Amiga 68k, x86 and ARM hardware (one version runs Linux-hosted on the Raspberry Pi). In particular, AROS for Amiga 68k hardware aims to create an open source Kickstart ROM replacement for emulation purpose and/or for use on real "classic" hardware.

= Magazines =

Amiga Format continued publication until 2000. Amiga Active was launched in 1999 and was published until 2001.

Several magazines are in publication today: Print magazine Amiga Addict started publication in 2020.{{Cite web|url=https://www.addict.media/|title=Amiga Addict Magazine - Monthly Commodore Amiga Print Publication|website=www.addict.media|access-date=2024-03-14|archive-date=2024-03-04|archive-url=https://web.archive.org/web/20240304150358/https://www.addict.media/|url-status=dead}}Amiga Future, which is available in both English and German; Bitplane.it, a bimonthly magazine in Italian; and AmigaPower, a long-running French magazine.{{Cite web|url=https://www.passioneamiga.it/|title=Passione Amiga|website=www.passioneamiga.it}}

= Trade shows =

The Amiga continues to be popular enough that fans to support conferences such as Amiga37 which had over 50 vendors.{{Cite web |last=Purdy |first=Kevin |date=2022-10-17 |title=37-year-old Amiga platform gets updates to Linux kernel, AmigaOS SDK |url=https://arstechnica.com/gadgets/2022/10/37-year-old-amiga-platform-gets-updates-to-linux-kernel-amigaos-sdk/ |access-date=2022-11-04 |website=Ars Technica |language=en-us}}

Uses

The Amiga series of computers found a place in early computer graphic design and television presentation. Season 1 and part of season 2 of the television series Babylon 5 were rendered in LightWave 3D on Amigas. Other television series using Amigas for special effects included SeaQuest DSV and Max Headroom.

In addition, many celebrities and notable individuals have made use of the Amiga:

  • Andy Warhol was an early user of the Amiga and appeared at the launch, where he made a computer artwork of Debbie Harry. Warhol used the Amiga to create a new style of art made with computers, and was the author of a multimedia opera called You Are the One, which consists of an animated sequence featuring images of actress Marilyn Monroe assembled in a short movie with a soundtrack. The video was discovered on two old Amiga floppies in a drawer in Warhol's studio and repaired in 2006 by the Detroit Museum of New Art. The pop artist has been quoted as saying: "The thing I like most about doing this kind of work on the Amiga is that it looks like my work in other media".
  • Artist Jean "Moebius" Giraud credits the Amiga he bought for his son as a bridge to learning about "using paint box programs". He uploaded some of his early experiments to the file sharing forums on CompuServe.
  • Futurist and science fiction author Arthur C. Clarke used an Amiga computer to calculate and explore Mandelbrot sets in the 1988 documentary film God, the Universe and Everything Else.{{cite book | title=Selected Works of Arthur C. Clarke: The Deep Range, The Trigger, The Ghost from the Grand Banks, Richter IO | publisher=RosettaBooks | author=Clarke, Arthur C. | year=2016 | isbn=9780795349720}}
  • The "Weird Al" Yankovic film UHF contains a computer-animated music video parody of the Dire Straits song "Money for Nothing", titled "Money for Nothing/Beverly Hillbillies*". According to the DVD commentary track, this spoof was created on an Amiga home computer.
  • Rolf Harris used an Amiga to digitize his hand-drawn art work for animation on his television series Rolf's Cartoon Club.
  • Debbie Harry appeared together with Andy Warhol (see above) at launch.{{cite web | url=https://www.pcmag.com/news/11-celebs-who-tried-to-sell-you-pcs-in-the-1980s | title=11 Celebs Who Tried to Sell You PCS in the 1980s | date=January 2018 }}
  • Todd Rundgren's video "Change Myself" was produced with Toaster and Lightwave.
  • Scottish pop artist Calvin Harris composed his 2007 debut album I Created Disco with an Amiga 1200.
  • Susumu Hirasawa, a Japanese progressive-electronic artist, is known for using Amigas to compose and perform music, aid his live shows and make his promotional videos. He has also been inspired by the Amiga, and has referenced it in his lyrics. His December 13, 1994 "Adios Jay" Interactive Live Show was dedicated to (then recently deceased) Jay Miner. He also used the Amiga to create the virtual drummer TAINACO, who was a CG rendered figure whose performance was made with Elan Performer and was projected with DCTV. He also composed and performed "Eastern-boot", the AmigaOS 4 boot jingle.
  • Electronic musician Max Tundra created his three albums with an Amiga 500.
  • Bob Casale, keyboardist and guitarist of the new wave band Devo, used Amiga computer graphics on the album cover to Devo's album Total Devo.
  • Most of Pokémon Gold and Silver's music was created on an Amiga computer, converted to MIDI, and then reconverted to the game's music format.{{cite web|last=Masuda|first=Junichi|title=HIDDEN POWER of masuda|url=http://www.gamefreak.co.jp/blog/dir_english/?p=185|publisher=Game Freak|access-date=7 November 2013|archive-url=https://web.archive.org/web/20131123075400/http://www.gamefreak.co.jp/blog/dir_english/?p=185|archive-date=23 November 2013|url-status=live|df=dmy-all}}
  • American professional skateboarder Tony Hawk used an Amiga 2000 during the late 1980s to early 1990s.{{Cite web |title=Tony Hawk big fan of Commodore Amiga computers |url=http://www.generationamiga.com/2018/04/01/tony-hawk-was-a-big-fan-of-commodore-amiga-computers/ |access-date=2023-10-31 |website=GenerationAmiga.com |language=en-GB}} NewTek sent him a Video Toaster for his Amiga in exchange for appearing in a promotional video alongside Wil Wheaton and Penn Jillette,{{Cite web |last=Baker |first=Katie |date=2022-04-06 |title='Tony Hawk: Until the Wheels Fall Off' Captures the Gravity of Chasing Air |url=https://www.theringer.com/tv/2022/4/6/23012509/tony-hawk-until-the-wheels-fall-off-hbo-documentary |access-date=2023-10-29 |website=The Ringer |language=en}} which he later used for editing a promotional video for the TurboDuo game Lords of Thunder in 1993.{{cite magazine |url=https://archive.org/stream/Electronic_Gaming_Monthly_47#page/n28/mode/1up |title=Salvation For Those Who Praise The Lord. — Lords of Thunder |magazine=Electronic Gaming Monthly |issue=47 |publisher=Sendai Publishing |date=June 1993 |page=29}}{{cite tweet |number=842531647958339584 |user=tonyhawk |title=holy crap, yes I did |date=2017-03-16 |access-date=2021-09-29 |archive-date=2021-03-12 |archive-url=https://archive.today/20210312143130/https://twitter.com/tonyhawk/status/842531647958339584 |url-status=live}}
  • Veteran actor Dick Van Dyke also owned an Amiga equipped with a Video Toaster, where he is credited with the creation of 3D-rendered effects used on Diagnosis: Murder and The Dick Van Dyke Show Revisited.{{Cite web |title=Amateur CGI artist Dick Van Dyke once made computer effects for Diagnosis Murder |url=https://www.metv.com/stories/dick-van-dyke-made-computer-effects-for-diagnosis-murder |access-date=2024-03-28 |website=Me-TV Network |language=en}} Van Dyke has displayed his computer-generated imagery work at SIGGRAPH, and continues to work with LightWave 3D.{{Cite news |last=Hafner |first=Katie |author-link=Katie Hafner |date=June 22, 2000 |title=The Return of a Desktop Cult Classic (No, Not the Mac) |newspaper=The New York Times |url=https://www.nytimes.com/library/tech/00/06/circuits/articles/22amig.html |url-status=live |access-date=March 19, 2011 |archive-url=https://web.archive.org/web/20080512010954/http://www.nytimes.com/library/tech/00/06/circuits/articles/22amig.html |archive-date=May 12, 2008}}{{Cite web |last=Hill |first=Jim |date=August 11, 2004 |title=Do You Think That TV Legends Can't Master Computer Animation? Well Then ... You Clearly Don't Know Dick |url=http://jimhillmedia.com/blogs/jim_hill/archive/2004/08/11/443.aspx |url-status=live |archive-url=https://web.archive.org/web/20071012101910/http://jimhillmedia.com/blogs/jim_hill/archive/2004/08/11/443.aspx |archive-date=October 12, 2007 |access-date=November 3, 2007 |publisher=Jim Hill Media}}{{Cite web |url=https://www.youtube.com/watch?v=DKLLWDKEQmY |title=Animation: Dick Van Dyke Dancing to "Billie Jean" |website=YouTube |date=August 31, 2009 |archive-url=https://web.archive.org/web/20151023200729/https://www.youtube.com/watch?v=DKLLWDKEQmY |archive-date=October 23, 2015}}
  • A number of notable producers used OctaMED for composition and live performance of Drum and Bass, Jungle, and various other sub-genres of electronic dance music on Amiga systems, occasionally in conjunction with additional synthesizers. These include: Aphrodite, DJ Zinc, Omni Trio, and Paradox, among others.
  • Electronic musician Deaton Chris Anthony uses an Amiga to produce music (in addition to a modern Mac-based setup). Anthony has referred to the computer as his "inspiration creator".{{Cite web |url=https://musictech.com/features/studios/show-off-your-studio-deaton-chris-anthonys-la-based-creative-hub/ |last=Payne |first=Oliver |date=August 10, 2022 |title=Show Off Your Studio: Deaton Chris Anthony's LA-based creative hub |website=MusicTech |access-date=February 12, 2025}}

=Special purpose applications=

  • Amigas were used in various NASA laboratories to keep track of low orbiting satellites until 2004. Amigas were used at Kennedy Space Center to run strip-chart recorders, to format and display data, and control stations of platforms for Delta rocket launches.
  • Palomar Observatory used Amigas to calibrate and control the charge-coupled devices in their telescopes, as well as to display and store the digitized images they collected.{{cite web|url=https://archive.org/stream/info-magazine-13/Info_Issue_13_1987_Jan-Feb#page/n29/mode/2up|title=Info magazine issue 13|date=January 1987|access-date=2016-07-26|archive-url=https://web.archive.org/web/20160709030920/http://archive.org/stream/info-magazine-13/Info_Issue_13_1987_Jan-Feb#page/n29/mode/2up|archive-date=2016-07-09|url-status=live}}
  • London Transport Museum developed their own interactive multi-media software for the CD32 including a virtual tour of the museum.
  • Amiga 500 motherboards were used, in conjunction with a LaserDisc player and genlock device, in arcade games manufactured by American Laser Games.
  • A custom Amiga 4000T motherboard was used in the HDI 1000 medical ultrasound system built by Advanced Technology Labs.
  • {{As of|2015}}, the Grand Rapids Public School district uses a Commodore Amiga 2000 with 1200 baud modem to automate its air conditioning and heating systems for the 19 schools covered by the GRPS district. The system has been operating day and night for decades.{{cite news|author=Eric Limer|url=http://www.popularmechanics.com/technology/infrastructure/a16010/30-year-old-computer-runs-school-heat/|title=One Ancient Commodore Amiga Runs the Heat and AC for 19 Public Schools|publisher=Hearst Digital Media|date=June 12, 2015|access-date=June 15, 2015|archive-url=https://web.archive.org/web/20150615002258/http://www.popularmechanics.com/technology/infrastructure/a16010/30-year-old-computer-runs-school-heat/|archive-date=June 15, 2015|url-status=live|df=mdy-all}}{{cite web|url=http://woodtv.com/2015/06/11/1980s-computer-controls-grps-heat-and-ac/|title=1980s computer controls GRPS heat and AC|date=11 June 2015|access-date=2016-02-29|archive-url=https://web.archive.org/web/20160304023037/http://woodtv.com/2015/06/11/1980s-computer-controls-grps-heat-and-ac/|archive-date=2016-03-04|url-status=live}}
  • The Weather Network used Amigas to display the weather on TV.{{Citation needed|date=October 2020}}

See also

Notes

{{Notelist}}

References

{{Reflist

|refs =

{{YouTube|id=tSBVN4syAKc|title=Only Amiga Makes it Possible - Full video - Comdex 1987}}

{{YouTube|id=jwo5pIbtrS8|title=Amiga 1000 Computer Commercial}}

{{YouTube|id=drE6M2pZF98|title=Commodore Amiga Commercial (1987)}}

{{YouTube|id=uZNGyS1u30g|title=COMMERCIAL : "Commodore Amiga" computer [1987]}}

{{YouTube|ludrX2s1ZuM|Commodore advert 1987 - TV spot version of 20-minute presentation}} {{dead link|date=August 2012}}

{{YouTube|id=06di_a588b0|title=Commercial Amiga 500 1989 long version}}

{{cite web |url = http://www.amigau.com/aig/prototypes/lorraine.html |title = Amiga Lorraine |work = Amiga History Guide |author = Gareth Knight |access-date = April 21, 2008 |archive-url = https://web.archive.org/web/20080220171913/http://www.amigau.com/aig/prototypes/lorraine.html |archive-date = February 20, 2008 |url-status = dead |df = mdy-all }}

{{cite web |url = http://www.amigaforever.com/games/ |title = Amiga Games |publisher = Amiga Forever |access-date = 2012-08-24 }}

{{cite book |author=Commodore-Amiga, Inc. |title = Amiga Hardware Reference Manual |edition = 3rd |series=Amiga Technical Reference Series |year=1991 |publisher=Addison-Wesley |isbn = 0-201-56776-8 }}

{{cite web |url = http://www.amigahistory.co.uk/oneamiga1.html | title = The One for 16-bit Games | access-date = July 17, 2007 | first = Gareth | last = Knight | work = Amiga History Guide | archive-url = https://web.archive.org/web/20070712191820/http://www.amigahistory.co.uk/oneamiga1.html | archive-date= July 12, 2007 | url-status= dead }}

{{cite web | url = http://amigareviews.classicgaming.gamespy.com/s_snippe.htm | title = Amiga Reviews: Zzap 16-Bit Gaming | access-date = May 23, 2008 | archive-url = https://web.archive.org/web/20080512010049/http://amigareviews.classicgaming.gamespy.com/s_snippe.htm | archive-date= May 12, 2008 | url-status= dead }}

{{citation | url=http://www.thule.no/haynie/research/acutiatr/docs/acu1.pdf | title=Architecture Specification for Acutiator | first=Dave | last=Haynie | publisher=Commodore International Services Corporation, Technology Division | date=October 18, 1992 | access-date=September 3, 2011 | archive-url=https://web.archive.org/web/20110927025602/http://www.thule.no/haynie/research/acutiatr/docs/acu1.pdf | archive-date=September 27, 2011 | url-status=dead | df=mdy-all }}

{{cite web |url=http://www.amigahistory.co.uk/haynie3drisc.html |title=CBM's Plans for the RISC-Chipset |author=Dave Haynie |date=1995-01-24 |quote=The initial schedule of 18 months was for the Hombre game machine hardware. There's no real OS here, just a library of routines, including a 3D package, which would probably be licensed. The Amiga OS was not to have run on this system in any form. |publisher=Gareth Knight |access-date=January 31, 2010 |archive-url=https://web.archive.org/web/20080703203138/http://www.amigahistory.co.uk/haynie3drisc.html |archive-date=July 3, 2008 |url-status=live |df=mdy-all }}

{{cite web|url=http://amigahardware.mariomisic.de/cgi-bin/showhardware.cgi?HARDID=154 |title=amigahardware.mariomisic.de - The Big Book of Amiga Hardware |date=2008-12-24 |access-date=2013-07-24 |url-status=bot: unknown |archive-url=https://web.archive.org/web/20081224193229/http://amigahardware.mariomisic.de/cgi-bin/showhardware.cgi?HARDID=154 |archive-date=2008-12-24 }}

{{cite web|url=http://amigahardware.mariomisic.de/cgi-bin/showhardware.cgi?HARDID=225 |title=amigahardware.mariomisic.de - The Big Book of Amiga Hardware |date=2008-12-24 |access-date=2013-07-24 |url-status=bot: unknown |archive-url=https://web.archive.org/web/20081224192658/http://amigahardware.mariomisic.de/cgi-bin/showhardware.cgi?HARDID=225 |archive-date=2008-12-24 }}

{{cite web|url=http://www.amiga-hardware.com/showhardware.cgi?HARDID=863 |title=Commodore: A2024 |publisher=Amiga-hardware.com |access-date=January 31, 2012 |url-status=dead |archive-url=https://web.archive.org/web/20120302193812/https://www.amiga-hardware.com/showhardware.cgi?HARDID=863 |archive-date=March 2, 2012 }}

{{Cite web|url=http://www.cucug.org/amiga/aminews/1995/at951111.html|title=Press Release by Gilles Bourdin, Amiga Technologies GmbH|website=www.cucug.org}}

{{cite web|title=Commodore A2091 |url=http://www.amiga-hardware.com/showhardware.cgi?HARDID=1161 |url-status=dead |archive-url=https://web.archive.org/web/20130120150715/http://www.amiga-hardware.com/showhardware.cgi?HARDID=1161 |archive-date=2013-01-20 }} 120915 amiga-hardware.com

{{cite web|title=Commodore A590 |url=http://www.amiga-hardware.com/showhardware.cgi?HARDID=534 |url-status=dead |archive-url=https://web.archive.org/web/20130120150712/http://www.amiga-hardware.com/showhardware.cgi?HARDID=534 |archive-date=2013-01-20 }} 090420 amiga-hardware.com

{{cite web|title=Commodore A3070 |url=http://www.amiga-hardware.com/showhardware.cgi?HARDID=1296 |url-status=dead |archive-url=https://web.archive.org/web/20130120150740/http://www.amiga-hardware.com/showhardware.cgi?HARDID=1296 |archive-date=2013-01-20 }} 090420 amiga-hardware.com

{{cite web | work = Amiga Hardware Database | title = Expansion cards | url = http://amiga.resource.cx/exp/search.pl?amiga=3000&cat=eth | access-date = 2009-04-26 | archive-url = https://web.archive.org/web/20140805005534/http://amiga.resource.cx/exp/search.pl?amiga=3000&cat=eth | archive-date = 2014-08-05 | url-status = live }} 090426 amiga.resource.cx

{{cite web|work=Amiga Hardware Database |title=Photo Gallery of Ameristar Technologies A4066 |url=http://hardware.amiga.hu/photos/photo2.pl?id=a4066&pg=1&res=hi&lang=en |url-status=dead |archive-url=https://web.archive.org/web/20120226175546/http://hardware.amiga.hu/photos/photo2.pl?id=a4066&pg=1&res=hi&lang=en |archive-date=2012-02-26 }} 2010-07-01

{{cite web|title=Networking FAQ|url=http://www.amigahistory.co.uk/networkfaq.html#AmiTCP|access-date=2009-04-26|archive-url=https://web.archive.org/web/20090317074342/http://www.amigahistory.co.uk/networkfaq.html#AmiTCP|archive-date=2009-03-17|url-status=live}} 090426 amigahistory.co.uk

{{cite web |url=http://www.amiga-stuff.com/hardware/diskdrives.html |title=Diskdrives used by Commodore |publisher=amiga-stuff.com |date=December 12, 2003 |access-date=January 31, 2012 |archive-url=https://web.archive.org/web/20120206211710/http://www.amiga-stuff.com/hardware/diskdrives.html |archive-date=February 6, 2012 |url-status=live |df=mdy-all }}

{{cite web|url=http://aminet.net/package/driver/net/cnetdevice|title=PCMCIA Network Card driver|access-date=2010-08-27|archive-url=https://web.archive.org/web/20151209014015/http://aminet.net/package/driver/net/cnetdevice|archive-date=2015-12-09|url-status=live}}

{{cite web|title=Commodore: A560 |url=http://www.amiga-hardware.com/showhardware.cgi?HARDID=903 |url-status=dead |archive-url=https://web.archive.org/web/20130120150726/http://www.amiga-hardware.com/showhardware.cgi?HARDID=903 |archive-date=2013-01-20 }} 090428 amiga-hardware.com

{{cite web|title=Commodore: A2060 |url=http://www.amiga-hardware.com/showhardware.cgi?HARDID=904 |url-status=dead |archive-url=https://web.archive.org/web/20130120150719/http://www.amiga-hardware.com/showhardware.cgi?HARDID=904 |archive-date=2013-01-20 }} 090428 amiga-hardware.com

{{cite web|title=Amitrix: Amiga-Link |url=http://www.amiga-hardware.com/showhardware.cgi?HARDID=899 |url-status=dead |archive-url=https://web.archive.org/web/20130120150701/http://www.amiga-hardware.com/showhardware.cgi?HARDID=899 |archive-date=2013-01-20 }} 090428 amiga-hardware.com

{{cite web|title=Village Tronic: Liana |url=http://www.amiga-hardware.com/showhardware.cgi?HARDID=1590 |url-status=dead |archive-url=https://web.archive.org/web/20130120150733/http://www.amiga-hardware.com/showhardware.cgi?HARDID=1590 |archive-date=2013-01-20 }} 090428 amiga-hardware.com

{{cite web|title=Nine Tiles: AmigaLink (9 Tiles) |url=http://www.amiga-hardware.com/showhardware.cgi?HARDID=1436 |url-status=dead |archive-url=https://web.archive.org/web/20130120150705/http://www.amiga-hardware.com/showhardware.cgi?HARDID=1436 |archive-date=2013-01-20 }} 090428 amiga-hardware.com

{{cite web|title=PPS (Progressive Peripherals & Software): DoubleTalk |url=http://www.amiga-hardware.com/showhardware.cgi?HARDID=918 |url-status=dead |archive-url=https://web.archive.org/web/20130120150729/http://www.amiga-hardware.com/showhardware.cgi?HARDID=918 |archive-date=2013-01-20 }} 090428 amiga-hardware.com

{{cite web | last = Knight | first = Gareth | title = Amiga history guide | year = 1997–2003 | url = http://www.amigau.com/aig/comamiga.html | access-date = September 29, 2007 | archive-url = https://web.archive.org/web/20071019220953/http://www.amigau.com/aig/comamiga.html | archive-date = October 19, 2007 | url-status = dead | df = mdy-all }}

{{cite web |author=Gareth Knight |url=http://www.amigahistory.co.uk/sales.html |title=Commodore-Amiga Sales Figures |publisher=Amigahistory.co.uk |date=1993-12-31 |access-date=2012-08-24 |archive-url=https://web.archive.org/web/20121126150801/http://amigahistory.co.uk/sales.html |archive-date=2012-11-26 |url-status=live }}

{{cite magazine |url=http://www.pcworld.com/article/126692-1/article.html |title=The 25 Greatest PCs of All Time |magazine=PCWorld |date=August 12, 1981 |access-date=January 31, 2012 |archive-url=https://web.archive.org/web/20090912144202/http://www.pcworld.com/article/126692-1/article.html |archive-date=September 12, 2009 |df=mdy-all }}

{{cite web |author=Gareth Knight |url=http://www.amigahistory.co.uk/a500plus.html |title=Commodore Amiga 500 |publisher=Amigahistory.co.uk |date=July 1, 2004 |access-date=January 31, 2012 |archive-url=https://web.archive.org/web/20120211150751/http://www.amigahistory.co.uk/a500plus.html |archive-date=February 11, 2012 |url-status=live |df=mdy-all }}

{{cite web|url=http://www.rollerfink.de/wp-content/rollerfink.blogs.com/photos/uncategorized/img_1518.JPG |title=RollerFink.de |access-date=January 31, 2012 |url-status=bot: unknown |archive-url=https://web.archive.org/web/20120218151546/http://www.rollerfink.de/wp-content/rollerfink.blogs.com/photos/uncategorized/img_1518.JPG |archive-date=February 18, 2012 }}

{{cite web|last=Knight|first=Gareth|title=References to B52 songs on Amiga Motherboards|year=1997–2006|url=http://www.amigahistory.co.uk/b52board.html|access-date=May 20, 2008|archive-url=https://web.archive.org/web/20080319054839/http://www.amigahistory.co.uk/b52board.html|archive-date=March 19, 2008|url-status=live|df=mdy-all}}

{{cite web |url=http://hyperion-entertainment.biz/index.php?option=com_content&view=article&id=68 |title=AmigaOS 4.0 The Final Update available |publisher=Hyperion-entertainment.biz |date=2006-12-24 |access-date=2012-08-24 |archive-url=https://web.archive.org/web/20130515081108/http://hyperion-entertainment.biz/index.php?option=com_content&view=article&id=68 |archive-date=2013-05-15 |url-status=live }}

{{cite web |url=http://hyperion-entertainment.biz/index.php?option=com_content&view=article&id=63 |title=AmigaOS 4.0 for Classic Amiga gone Gold |publisher=Hyperion-entertainment.biz |date=2007-11-22 |access-date=2012-08-24 |archive-url=https://web.archive.org/web/20130515072229/http://hyperion-entertainment.biz/index.php?option=com_content&view=article&id=63 |archive-date=2013-05-15 |url-status=live }}

{{cite web |url=http://hyperion-entertainment.biz/index.php?option=com_content&view=article&id=59 |title=AmigaOS 4.1 gone Gold |publisher=Hyperion-entertainment.biz |date=2008-08-06 |access-date=2012-08-24 |archive-url=https://web.archive.org/web/20130515065301/http://hyperion-entertainment.biz/index.php?option=com_content&view=article&id=59 |archive-date=2013-05-15 |url-status=live }}

{{cite web |last=Staff |first=Ars |url=https://arstechnica.com/articles/culture/amigaos41-ars.ars/5 |title=It's alive!: Ars reviews AmigaOS 4.1 |website=Ars Technica |date=2008-09-23 |access-date=2012-08-24 |archive-url=https://web.archive.org/web/20081018224209/http://arstechnica.com/articles/culture/amigaos41-ars.ars/5 |archive-date=2008-10-18 |url-status=live }}

{{cite web |url=http://hyperion-entertainment.biz/index.php?option=com_content&view=article&id=144 |title=AmigaOS 4.1 for Classics imminent |publisher=Hyperion-entertainment.biz |date=2011-05-11 |access-date=2012-08-24 |archive-url=https://web.archive.org/web/20150317092726/http://hyperion-entertainment.biz/index.php?option=com_content&view=article&id=144 |archive-date=2015-03-17 |url-status=live }}

{{cite web |url=http://blog.hyperion-entertainment.biz/?p=683 |title=AmigaOS 4.1 Update 5 Released « Hyperion Entertainment Blog |publisher=Blog.hyperion-entertainment.biz |date=2012-08-16 |access-date=2012-08-24 |archive-url=https://web.archive.org/web/20120818020550/http://blog.hyperion-entertainment.biz/?p=683 |archive-date=2012-08-18 |url-status=live }}

{{cite web|url=http://www.acube-systems.biz/eng/news.php?id=35 |title=acube-systems.biz - OEM Version of AmigaOS 4.1 for Sam440ep imminent |access-date=2009-02-22 |url-status=bot: unknown |archive-url=https://web.archive.org/web/20090222004603/http://www.acube-systems.biz/eng/news.php?id=35 |archive-date=2009-02-22 }}, 2008-09-17 {{dead link|date=August 2012}}

{{cite web |url=http://amigaworld.net/modules/news/article.php?storyid=4740 |title=AmigaOS 4.1 for Pegasos II, Hyperion Entertainment, The Amiga Computer Community Portal Website |publisher=Amigaworld.net |date=2009-01-31 |access-date=2012-08-24 |archive-url=https://web.archive.org/web/20110723013204/http://amigaworld.net/modules/news/article.php?storyid=4740 |archive-date=2011-07-23 |url-status=live }}

{{cite web|url=http://www.amiga-hardware.com/showhardware.cgi?HARDID=43 |title=MacroSystem (US & Germany): DraCo |publisher=Amiga-hardware.com |access-date=2012-08-24 |url-status=dead |archive-url=https://web.archive.org/web/20121212063251/http://www.amiga-hardware.com/showhardware.cgi?HARDID=43 |archive-date=2012-12-12 }}

{{cite web|url=http://www.amigahistory.co.uk/pios/pios1.html|title=PIOS One|access-date=2011-03-19|archive-url=https://web.archive.org/web/20110106044546/http://www.amigahistory.co.uk/pios/pios1.html|archive-date=2011-01-06|url-status=live}}

{{cite news|url=http://www.nr2.ru/technology/320289.html|title=Выпущен прототип новой модели компьютеров Amiga (ФОТО)|date=Feb 13, 2011|publisher=Российское информационное агентство «Новый Регион». Версия 2.0|language=ru|access-date=June 24, 2011|archive-url=https://web.archive.org/web/20110219133327/http://nr2.ru/technology/320289.html|archive-date=February 19, 2011|url-status=live|df=mdy-all}}

{{cite web | url = http://www.ppa.pl/artykul-12.questions.to..Natami.Team.part.1-3_32_1334.html | title = 12 questions to... Natami Team — part 1 | publisher = Polski Portal Amigowy | date = April 28, 2011 | access-date = June 15, 2011 | archive-url = https://web.archive.org/web/20110930050344/http://www.ppa.pl/artykul-12.questions.to..Natami.Team.part.1-3_32_1334.html | archive-date = September 30, 2011 | url-status = live | df = mdy-all }}

{{cite web |url=http://home.hetnet.nl/~weeren001/minimig.html |title=HetNet.nl |publisher=Home.hetnet.nl |access-date=January 31, 2012 |archive-url=https://web.archive.org/web/20090805053853/http://home.hetnet.nl/~weeren001/minimig.html |archive-date=August 5, 2009 |url-status=live |df=mdy-all }}

{{cite web|url=http://siliconsonic.de/news/news118_e.htm |title=INDIVIDUAL COMPUTERS [ jens schoenfeld ] |publisher=Siliconsonic.de |access-date=2012-01-31 |url-status=dead |archive-url=https://web.archive.org/web/20120304102622/http://siliconsonic.de/news/news118_e.htm |archive-date=2012-03-04 }}

From PC Magazine, October 22, 1996 Inside Track By John C. Dvorak

{{cite book | first1=Robert J. | last1=Mical | first2=Susan| last2=Deyl | author-link1=RJ Mical | title=Amiga Intuition Reference Manual | series=Amiga Technical Reference Series | year=1987 | publisher=Addison-Wesley Publishing Company, Inc. | isbn=0-201-11076-8 }}

{{cite book |last = Sassenrath|first = Carl|year = 1986|title = Amiga ROM Kernel Reference Manual|location = Exec}}

{{cite journal | last=Holloway | first=Tim |date=January 1991 | title=The Object-Oriented Amiga Exec: The design of the Amiga operating-system kernel follows the rules of object-oriented programming | journal=Byte | issue=January 1991 | pages=329–332, 234 | publisher=McGraw-Hill |issn=0360-5280 }}

{{cite web |url = https://groups.google.com/group/comp.sys.amiga.advocacy/msg/7d0bf445a2c22d67 |title = Adding Memory Protection (MP) to the Amiga |work = groups.google.com |access-date = December 30, 2006 |archive-url = https://web.archive.org/web/20130527181853/http://groups.google.com/group/comp.sys.amiga.advocacy/msg/7d0bf445a2c22d67 |archive-date = May 27, 2013 |url-status = live |df = mdy-all }}

{{cite web |url=http://leaf.dragonflybsd.org/mailarchive/kernel/2006-02/msg00087.html |title=DragonFly kernel List (threaded) for 2006-02, Re: User-Space Device Drivers |author=Matthew Dillon |author-link=Matthew Dillon (computer scientist) |publisher=Leaf.dragonflybsd.org |date=2006-02-28 |access-date=2008-02-01 |archive-url=https://web.archive.org/web/20080516214424/http://leaf.dragonflybsd.org/mailarchive/kernel/2006-02/msg00087.html |archive-date=2008-05-16 |url-status=dead }}

{{cite web |url=http://leaf.dragonflybsd.org/mailarchive/kernel/2003-07/msg00049.html |title=DragonFly kernel List (threaded) for 2003-07, Re: You could do worse than Mach ports |author=Matthew Dillon |author-link=Matthew Dillon (computer scientist) |publisher=Leaf.dragonflybsd.org |date=2003-07-17 |access-date=2008-02-01 |archive-url=https://web.archive.org/web/20070824154143/http://leaf.dragonflybsd.org/mailarchive/kernel/2003-07/msg00049.html |archive-date=2007-08-24 |url-status=dead }}

{{cite web |url=http://www.compwisdom.com/topics/Minix |title=Minix |publisher=CompWisdom |access-date=2012-08-24 |archive-url=https://web.archive.org/web/20120419111423/http://www.compwisdom.com/topics/Minix |archive-date=2012-04-19 |url-status=live }}

{{cite web | url=http://www.amigahistory.co.uk/ahistory.html | title=The Twists and Turns of the Amiga Saga | work=Amiga History Guide | author=Gareth Knight | access-date=April 21, 2008| archive-url= https://web.archive.org/web/20080511145416/http://www.amigahistory.co.uk/ahistory.html| archive-date= May 11, 2008 | url-status= live }}

DeMaria and Wilson (2003) High Score!: The Illustrated History of Electronic Games p. 109 {{ISBN|0-07-223172-6}}

{{cite news|url=http://www.amigahistory.co.uk/originsboing.html|title=Dr. Ryan Czerwinski of Merlancia Industries explains the origin of the Amiga Boing ball and checkmark|author=Ryan Czerwinski|date=December 31, 2001|work=Amiga Network News|access-date=November 21, 2010|archive-url=https://web.archive.org/web/20111208163321/http://www.amigahistory.co.uk/originsboing.html|archive-date=December 8, 2011|url-status=live|df=mdy-all}}

{{cite web|url=http://aros68k.org/ |title=AROS68k |publisher=AROS68k |access-date=2012-08-24 |url-status=dead |archive-url=https://web.archive.org/web/20121107123654/http://aros68k.org/ |archive-date=2012-11-07 }}

{{cite web|author=Andreas Magerl |url=http://www.amigafuture.de |title=Amigafuture.de |publisher=Amigafuture.de |access-date=January 31, 2012 }}

{{cite web |url=http://www.bitplane.it |title=Bitplane.it |language=it |publisher=Bitplane.it |access-date=January 31, 2012 |archive-url=https://web.archive.org/web/20120102214042/http://www.bitplane.it/ |archive-date=January 2, 2012 |url-status=live |df=mdy-all }}

{{cite web |url=http://amigapower.free.fr/ |title=Amigapower.free.fr |publisher=Amigapower.free.fr |access-date=January 31, 2012 |archive-url=https://web.archive.org/web/20120510095511/http://amigapower.free.fr/ |archive-date=May 10, 2012 |url-status=live |df=mdy-all }}

{{cite web |url=http://www.midwinter.com/lurk/making/effects.html |title=The Lurker's Guide to Babylon 5 |publisher=Midwinter.com |date=August 12, 1997 |access-date=January 31, 2012 |archive-url=https://web.archive.org/web/20060906094508/http://www.midwinter.com/lurk/making/effects.html |archive-date=September 6, 2006 |url-status=live |df=mdy-all }}

[http://www.midwinter.com/lurk/making/thornton.html An Interview with Ron Thornton] {{Webarchive|url=https://web.archive.org/web/20100103235407/http://midwinter.com/lurk/making/thornton.html |date=2010-01-03 }}, October 16, 1995. "Effects are designed on an accelerated Amiga 2000 with a Video Toaster board in it, using LightWave 3-D and Modeler 3-D".

{{cite web|url=http://www.newtek-europe.com/uk/community/lightwave/gorner/1.html |title=Interview with Matt Gorner |publisher=Newtek-europe.com |date=October 24, 2003 |access-date=January 31, 2012 |url-status=bot: unknown |archive-url=https://web.archive.org/web/20120212122644/http://www.newtek-europe.com/uk/community/lightwave/gorner/1.html |archive-date=February 12, 2012 }}

{{cite web |url=http://www.g4tv.com/techtvvault/features/37823/Max_Headroom_on_TechTV.html |title='Max Headroom' on TechTV |publisher=G4tv.com |date=April 23, 2002 |access-date=January 31, 2012 |archive-url=https://web.archive.org/web/20120303121323/http://www.g4tv.com/techtvvault/features/37823/Max_Headroom_on_TechTV.html |archive-date=March 3, 2012 |url-status=live |df=mdy-all }}

{{cite web |author=Gareth Knight |url=http://www.amigahistory.co.uk/fau/main.html |title=Welcome to Famous Amiga Uses! By Pär Boberg 2000-2002 |publisher=Amigahistory.co.uk |date=2002-02-23 |access-date=2012-08-24 |archive-url=https://web.archive.org/web/20121015063131/http://www.amigahistory.co.uk/fau/main.html |archive-date=2012-10-15 |url-status=live }}

{{cite web|url=http://www.artnode.org/text/andywarhol/index.html|title=Amiga Andy article|work=Artnode online|access-date=2006-12-05|archive-url=https://web.archive.org/web/20061003140307/http://www.artnode.org/text/andywarhol/index.html|archive-date=2006-10-03|url-status=dead}}

{{cite web |url=https://www.youtube.com/watch?v=3oqUd8utr14 |title=Andy Warhol paints Debbie Harry on an Amiga |publisher=YouTube |date=2012-07-21 |access-date=2012-08-24 |archive-url=https://web.archive.org/web/20120829083248/http://www.youtube.com/watch?v=3oqUd8utr14 |archive-date=2012-08-29 |url-status=live }} (Uploaded by theisotope on 2008-03-07)

{{cite web|url=http://www.artdaily.com/section/news/index.asp?int_sec=2&int_new=18091|title=Artdaily article about the discovery and repair of "you are the one"|work=Artdaily|access-date=January 7, 2007|archive-url=https://web.archive.org/web/20070220080231/http://www.artdaily.com/section/news/index.asp?int_sec=2&int_new=18091|archive-date=February 20, 2007|url-status=dead}}

{{cite web|work=Amiga World Magazine|url=http://www.artnode.org/text/andywarhol/amigandy.pdf|title=Interview with Andy Warhol|access-date=January 7, 2007|archive-url=https://web.archive.org/web/20070202071633/http://www.artnode.org/text/andywarhol/amigandy.pdf|archive-date=2007-02-02|url-status=dead}}

{{cite journal |last1=Goodman |first1=Cynthia |title=The Digital Revolution: Art in the Computer Age |journal=Art Journal |date=1990 |volume=49 |issue=3 |pages=248–252 |doi=10.2307/777115 |jstor=777115}}

{{cite magazine|url=https://www.wired.com/wired/archive/2.01/moebius.html|title=Moebius|magazine=Wired|access-date=2017-03-05|archive-url=https://web.archive.org/web/20120812193329/http://www.wired.com/wired/archive/2.01/moebius.html|archive-date=2012-08-12|url-status=live}}

UHF DVD commentary track

{{cite web|url=http://www.scala-london.co.uk/scala/event.php?id=656|title=Calvin Harris|date=June 6, 2007|access-date=August 10, 2008|archive-url=https://web.archive.org/web/20090102091152/http://www.scala-london.co.uk/scala/event.php?id=656|archive-date=January 2, 2009|url-status=dead|df=mdy-all}}

{{cite web|url=http://www.cokemachineglow.com/track_review/3960 |title=Track Reviews on Cokemachineglow |publisher=cokemachineglow |date=June 6, 2007 |access-date=November 29, 2008 |url-status=bot: unknown |archive-url=https://web.archive.org/web/20090207104558/http://www.cokemachineglow.com/track_review/3960 |archive-date=February 7, 2009 }}

{{cite web|url=http://obligement.free.fr/articles/amiganasa.php|title=Reportage: l'Amiga à la NASA|publisher=obligement.free.fr|access-date=2006-06-09|archive-url=https://web.archive.org/web/20060820000117/http://obligement.free.fr/articles/amiganasa.php|archive-date=2006-08-20|url-status=live}}

{{YouTube|id=qAPD9HA8Unw|title=Even NASA used Amiga's}}

{{cite web |author=Gareth Knight |url=http://www.amigahistory.co.uk/press/indexcd32.html |title=CD32: The Hyper-Museum Project |publisher=Amigahistory.co.uk |access-date=January 31, 2012 |archive-url=https://web.archive.org/web/20070927230308/http://www.amigahistory.co.uk/press/indexcd32.html |archive-date=September 27, 2007 |url-status=live |df=mdy-all }}

{{cite web|url=http://www.dragons-lair-project.com/tech/pages/alg.asp|title=American Laser Games Tech Center|publisher=Dragon's Lair Project|access-date=January 23, 2009| archive-url= https://web.archive.org/web/20090129203442/http://dragons-lair-project.com/tech/pages/alg.asp| archive-date= January 29, 2009 | url-status= live }}

{{cite web|url=http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=/netahtml/PTO/srchnum.html&r=1&f=G&l=50&s1=20070106157.PGNR.&OS=DN/20070106157&RS=DN/20070106157 |title=United States Patent Application 20070106157 |url-status=dead |archive-url=https://web.archive.org/web/20150713195132/http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=20070106157.PGNR.&OS=DN%2F20070106157&RS=DN%2F20070106157 |archive-date=2015-07-13 }}

}}

= Works cited =

  • {{cite book|url=https://books.google.com/books?id=wZnpAgAAQBAJ|title=Vintage Game Consoles: An Inside Look at Apple, Atari, Commodore, Nintendo, and the Greatest Gaming Platforms of All Time|last1=Loguidice|first1=Bill|last2=Barton|first2=Matt|publisher=CRC Press|date=2014|access-date=2022-07-01|isbn=978-0-415-85600-3}}
  • {{cite book|url=https://books.google.com/books?id=z-blqZH2gWwC|title=The Future Was Here: The Commodore Amiga|last=Maher|first=Jimmy|publisher=MIT Press|date=2012|access-date=2022-07-01|isbn=978-0-262-01720-6}}