- http://www.cray-cyber.org/
- http://www.columbia.edu/acis/history/
Website of Columbia University, New York, dedicated to computer history. A lot of interesting reading, including a description of the IBM 407 tabulating machine. - http://sloan.stanford.edu/MouseSite/1968Demo.html
Here, among other things, you can see a 90 minute video of first demonstration of a computer mouse. - http://www-03.ibm.com/ibm/history/
IBM webpage, dedicated to history of IBM. - http://en.wikipedia.org/wiki/Computing_timeline
Timeline of computing at Wikipedia.org. - http://ei.cs.vt.edu/~history/people.html
People who have influenced the development of computer. - http://www.old-computers.com
VVirtual collection of old computers and webpages of collectors from all over the world. - http://en.wikipedia.org/wiki/Computer_generation in http://en.wikipedia.org/wiki/History_of_computing_hardware
Computer generations and History of computer hardware at Wikipedia.org. - http://www.intel.com/museum/archives/index.htm
Intel, the processor manufacturers, archive. - http://www.computercollector.com/archive/
Interesting documentation about tabulating machines from the fifties and sixties of the last century.