Compaq Portable 486

{{Infobox Personal computer

| Photo = Compaq Portable 486c.jpg

| Type = Portable computer

| Released = {{Start date and age|1991}}

| Discontinued = {{Start date and age|1999}}

| Processor = {{nowrap|Intel 80486DX @ {{val|33 |ul=MHz}}}}

| Graphics = {{resx|640 X 480}} resolution 8-bit VGA, {{resx|80 X 25}} text

| Display = Active TFT monochrome

| Sound = PIT using a mini speaker

| OS =

| Memory = {{val|4 |-| 32 |ul=MB}} RAM

| RAMtype = 72-pin SIMM

| Connectivity = SCSI {{nowrap|2x EISA expansion bus}}

| manufacturer = Compaq Computer Corporation, United States

| dimensions = {{resx|39.6 (width) x 13.9 (depth) x 27.9 (height)}} cm[http://www.helpowl.com/p/Compaq/Portable-486/Research/65059?search=compaq%20portable%20486 helpowl.com - Compaq Portable 486 compaq portable 486]

| weight = {{convert|7.9|kg|lb|abbr=on}}

| predecessor = Compaq Portable 386

| successor =

| family = Compaq Portable series

| caption = {{nowrap|Color version,}} the Compaq Portable 486c

}}

The Compaq Portable 486 is a computer released by Compaq Computer Corporation in 1991.[http://www.1000bit.it/scheda.asp?id=9 1000bit.it - ---+ 1000 BiT +--- Computer's description] It was the last portable computer/"luggable" released under the Compaq Portable series of computers.{{Cite web|url=https://www.retropaq.com/the-compaq-portable-486/|title=The Compaq Portable 486|last=admin|date=2019-11-13|website=Retropaq|language=en-US|access-date=2019-11-14}}

The computer was released in several models with different hard disk configurations and in two screen types, a cheaper monochrome version and a more expensive active matrix color version, known as the Compaq Portable 486c. The street price with a {{nowrap|120 MB hard disk}} was {{US$|5899|1991|round=-2}} for the monochrome version and {{US$|9999|1991|round=-2}} for the active matrix color version.[https://books.google.com/books?id=4j0EAAAAMBAJ&pg=PA8 books.google.com - InfoWorld 1992-05-04] For a model with a {{nowrap|210 MB hard disk}}, the price was {{US$|6899}} for the monochrome version and US$10,999 for the active matrix color version, available after May 1992.

Both versions are equipped with a socketed {{val|33 |ul=MHz}} Intel 80486DX CPU, {{val|4 |ul=MB}} DRAM (72-pin SIMM),[http://loreoutlet.dyndns.org/collsite/comp/port/port.html loreoutlet.dyndns.org - Computer COLLsite: Portables] {{webarchive|url=https://web.archive.org/web/20120406235109/http://loreoutlet.dyndns.org/collsite/comp/port/port.html |date=2012-04-06 }} {{nowrap|1.44 MB 3.5"}} floppy, {{nowrap|120 - 1000 MB hard disk drive}} (P-ATA), and SCSI port for CD-ROM or tape.[http://www.mcamafia.de/mycomp/mycomp03.htm mcamafia.de - My Portable Computers] On the front of the unit there two dials underneath the PC-speaker to adjust the brightness of the screen and the volume of the PC-speaker. The PC-speaker in the Compaq Portable 486 is unique in that there is a 3.5 mm audio jack input jack on the side of the unit to allow a third party ISA sound card to pass through its audio output to the PC speaker.

Compaq released two versions of the Compaq Portable 486 with a faster, {{val|66|u=MHz}} Intel 80486DX2 CPU, named the Compaq Portable 486/66 for the monochrome version and the Compaq Portable 486/66c for the color version.

Compaq worked with Network General which released branded versions of the Compaq Portable 486 as "Network Sniffers".{{Cite web|url=https://www.retropaq.com/the-compaq-portable-486/|title = The Last Portable - Meet the Compaq Portable 486|date = 13 November 2019}}

A case-modified version of the colour screen variant with replaced internals was used as a prop in the 1995 film Hackers. With its internals replaced by those of a Macintosh laptop, it served as the character Dade Murphy's (Aliases: Zero Cool and Crash Override) primary computer for the first half of the film.

Environmental limits are:

• Temperature operating {{val|10 |-| 40|ul=degC}}, nonoperating {{val|-30 |-| 60|u=degC}}
• Relative humidity (noncondensing) Operating {{val|20| - |80|u=%}}, Nonoperating {{val|5 |-| 90|u=%}}
• Maximum unpressurized altitude operating {{val|3050 |ul=meters}}, nonoperating {{val|9150 |u=meters}}
• Shock {{val|40|u=g}}, {{val|11 |ul=ms}}, half sine (nonoperating Vibration, Operating {{val|0.25 |u=g}}, {{val|5 |–| 500|ul=Hz}}, {{1/2}} octave/min sweep Nonoperating {{val|1.0 |u=g}}, {{val|5 |–| 500|u=Hz}}, {{1/2}} octave/min sweep