XKL#TOAD-1

In its earliest days XKL developed, and in 1995 introduced, the TOAD-1, a compact, modern replacement for PDP-10 systems, mainframe computer systems that had gone out of production.{{cite web |title=LCM+L - XKL TOAD-1 System |url=https://livingcomputers.org/Computer-Collection/Vintage-Computers/Mainframes/XKL-TOAD-1-System.aspx |website=livingcomputers.org |publisher=Living Computers: Museum + Labs |access-date=26 April 2022}}

File:XKL Toad 1.jpg

Products include transponder, muxponder, mux/demux (multiplexing/demultiplexing) and (optical) amplifier models.

Supports 12, 24 or 36 10G channels.

Aggregates up to 96 100G channels onto a single pair of fibers.

Aggregates up to 48 100G / 400G channels

Aggregates up to 12 100G channels via statistical multiplexing.

Aggregates up to 36 10G channels.

Aggregates up to 100G services.

First released in 2007, the Darkstar DXM is a high-performance optical switch first installed at the California Institute of Technology as part of their Supercomputing Bandwidth Challenge. It provides 5 times the bandwidth, in excess of 100 Gigabits/sec, than the existing system but is also smaller and uses less power.{{cite web|title=XKL, LLC: XKL Supports Caltech in Supercomputing '08 Bandwidth Challenge |url=http://www.xkl.com/news/xkl-supports-caltech-in-supercomputing-08-bandwidth-challenge |website=Internet Archive: Wayback Machine |access-date=12 July 2016 |date=6 October 2009 |url-status=live |archive-url=https://web.archive.org/web/20091006175546/http://www.xkl.com/news/xkl-supports-caltech-in-supercomputing-08-bandwidth-challenge |archive-date=October 6, 2009 }}

The TOAD-1 System, also known as TD-1,The TOAD-1 was referred to as the TOAD as a development codename and then changed to the TD-1 as the original marketing name. It was then switched back to TOAD-1 before production began. was announced in 1993 and built as an extended version of the DECSYSTEM-20 from Digital Equipment Corporation. The original inspiration was to build a desktop version of the popular PDP-10 and the name began as an acronym for "Ten On A Desk". It was eventually built at XKL by veteran engineers from Cisco, DEC, Hewlett-Packard, and CDC.{{cite web|title=Exhibits - Living Computer Museum|url=http://www.livingcomputermuseum.org/The-Collection/Exhibit-Hall.aspx|website=www.livingcomputermuseum.org}}

File:XKL TOAD2 Logo.jpg in Seattle, Washington.]]

File:XKL TOAD 2.jpg in Seattle, Washington.]]

It was the first XKL product produced and it became available for purchase in late 1995. The TOAD-1 is a high-performance I/O oriented system with a 36-bit processor running TOPS-20. It is multi-user system that can provide service to over 100 users at a time. The TOAD-1 architecture incorporates modern peripherals, and open bus architecture, expanded physical and virtual memory while maintaining the TOPS-20 user environment.

The TOAD-2 was built to replace the TOAD-1. It is a single chip reimplementation used as redundant control processors in networking equipment from XKL. It can be configured for TOPS-20 timesharing.

Other companies that produced PDP-10 compatible computers:

• Foonly
• Systems Concepts

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{{Reflist}}

• {{Cite web

|url=http://www.networkworld.com/community/node/42322

|title=Cisco founder wants to go faster, farther

|publisher=Network World

|access-date=2009-06-01

|last=Duffy

|first=Jim

}}

• {{Cite web

|url=http://www.glgroup.com/News/Len-Bosack-and-XKL-introduce--Do-It-Yourself--optical-networking-15028.html

|title=Len Bosack and XKL introduce "Do It Yourself Optical Networking"

|publisher=GLG Group

|access-date=2007-08-08

}}

• {{Cite web

|url=http://www.lightreading.com/document.asp?doc_id=178797

|title=Cisco Founder Pushes for DIY Optical Networks

|publisher=Light Reading

|access-date=2009-07-03

}}

• {{Cite web

|url=http://www.tmcnet.com/tmc/videos/default.aspx?vid=3080&title=XKL+LLC+ITEXPO+West+2010

|title= Len Bosack speaks with Erik Linask at ITEXPO

|publisher=TMCNet

|access-date=2010-10-06

}}

• {{Official website|http://www.xkl.com}}
• [http://www.livingcomputermuseum.org/Online-Systems/Request-a-Login.aspx/ Login into the Living Computer Museum], a portal into the Paul Allen collection of timesharing and interactive computers, including an operational XKL TOAD-2

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Category:American companies established in 1991