Historical

The Apollo Guidance Computer Project
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.
http://hrst.mit.edu/hrs/apollo/public/

BESM-6 Nostalgia Page
Information about the late Soviet mainframe computer BESM-6, the last original was dismantled in 1995.
http://www.mailcom.com/besm6/

Blinkenlights Archaeological Institute
The Institute was established in 1997 to excavate, preserve, research, and present interesting and historically significant computing devices.
http://www.blinkenlights.com/

The Burroughs B-205 Computer
A mixture of science fiction and fact concerning the B205.
http://www.angelfire.com/scifi/B205/index.html

Charles Babbage Institute
CBI is a research center dedicated to promoting the study of the history of computing and its impact on society, and preserving relevant documentation.
http://www.cbi.umn.edu/

The Computer Closet
Rescues classic microcomputers and video games from the junk heap.
http://www.computercloset.org/

Computer History Association of California
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.
http://www.chac.org/

Cosmac Elf
History of 1802-based computing and home of the TinyELF emulator for Palm OS handhelds. Documents, scans, message board.
http://homepage.mac.com/ruske/cosmacelf/

Enigma Replica
Shows all processes involved Building a replica of the German M4 Naval Enigma.
http://www.enigma-replica.com

Historical Computer Society
International user group for old computer enthusiasts "old computers" and/or "old enthusiasts. Dedicated to preserving older and classic computer hardware, software, and literature.
http://www.cyberstreet.com/hcs/hcs.htm

Ian's 'Naff Computer Pics Page'
A page with some pictures of Honeywell-Bull mainframes and mini's (DPS-6 and DPS-7)
http://web.ukonline.co.uk/ie.dunster/My%20Stuff/Computer_page.htm

ICL 1900 Series Computers
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.
http://www.fcs.eu.com/icl1900/index.html

John Elliott
Dedicated to computers and/or operating systems which some might describe as obsolete.
http://www.seasip.demon.co.uk/

Largest Classic Computer Documentation Archive
Thousands of scanned classic computer documents.
http://www.bitsavers.org/pdf/Index.txt

Mechanical Aids to Calculation
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.
http://members.ozemail.com.au/~bconlon/calcaids.htm

MIXTEL
Site is dedicated to the first home computer that could be bought in the UK.
http://www.mixtel.pwp.blueyonder.co.uk/

The Oldskool PC Shrines
Honoring personal computing in the 1980s.
http://www.oldskool.org/shrines/

PC - History
Devoted to the history of the PC, covers all types of personal computers from 1970 to present.
http://www.pc-history.org/

Retro Computer Gallery
Collection of pictures of old computers, consoles, handhelds and magazines.
http://www.imarshall.karoo.net/

Sos-hardware.windowstothemax.com
Specifications and known problems of old hardware.
http://sos-hardware.windowstothemax.com

The SWTPC Computer Documentation Repository
Documentation for the SWTPC computer line.
http://www.swtpc.com/

Video Genie System
A personal tribute to an early model PC.
http://home.online.no/~kr-lund/VGS.htm