Chac is a nonprofit corporation, who safeguards and organizes the history of electronic computing, not only in California, but nationally and internationally. They collect and archive hardware, software and documents.

Site is dedicated to the first home computer that could be bought in the UK.

CBI is a research center dedicated to promoting the study of the history of computing and its impact on society, and preserving relevant documentation.

International user group for old computer enthusiasts "old computers" and/or "old enthusiasts. Dedicated to preserving older and classic computer hardware, software, and literature.

Devoted to the history of the PC, covers all types of personal computers from 1970 to present.

A mixture of science fiction and fact concerning the B205.

The Institute was established in 1997 to excavate, preserve, research, and present interesting and historically significant computing devices.

Documentation for the SWTPC computer line.

Dedicated to computers and/or operating systems which some might describe as obsolete.

Honoring personal computing in the 1980s.

Collection of pictures of old computers, consoles, handhelds and magazines.

The gathering of information concerning the primary stage of origination and development of IT and computing, primarily in Russia and ex-USSR.

Information about the late Soviet mainframe computer BESM-6, the last original was dismantled in 1995.

A personal tribute to an early model PC.

Shows all processes involved Building a replica of the German M4 Naval Enigma.

Specifications and known problems of old hardware.

Rescues classic microcomputers and video games from the junk heap.

A page with some pictures of Honeywell-Bull mainframes and mini's (DPS-6 and DPS-7)

Information about the ICL 1900 series mainframes from the 1970s, both hardware and software. The George (1S, 2, 3 and 4) series operating systems, Minimop and Maximop. Programming languages and other information.

History of 1802-based computing and home of the TinyELF emulator for Palm OS handhelds. Documents, scans, message board.

The Apollo Guidance Computer (AGC) was developed to provide reliable real-time control for the Apollo spacecraft that carried US astronauts to the moon, 1969-1972. This site is devoted to documenting the machines, people and institutions that made this possible.

Thousands of scanned classic computer documents.

History on the first automatic totalizer by Sir George Julius, mechanical aids to calculation - extracts of a paper presented to the Institution of Engineers Australia in 1920.