Due to the implementation of a new Collection Management System, CHM staff will not be able to assist researchers and in-person visits until March 2025.
From magnetic tape and rare film to lab notebooks and business plans to early mainframes and source code, our collection is as diverse as the history of computing. It is a rich resource for everyone, comprising historical objects, documents, software titles, ephemera, and photographs and moving images.
Note: CHM's online catalog has been updated through January 23rd, 2025. A new and improved catalog will be launched in Summer 2025.
Search the Catalog
Catalog contains over 151,130 records.
Plugboard
Physical object
X1640.99
4245 Line Printer Stacker
International Business Machines Corporation (IBM)
Physical object, 1985
X1640.99O
Highspeed relay
International Business Machines (IBM)
Physical object
102688503
Relay
International Business Machines (IBM)
Physical object
102688510
Relay
International Business Machines (IBM)
Physical object
102688515
SLT card
International Business Machines Corporation (IBM)
Physical object, Circa 1965
102682529
SMS card
International Business Machines Corporation (IBM)
Physical object, Circa 1959
102682517
SLT card
International Business Machines Corporation (IBM)
Physical object, Circa 1965
102682524
SLT card
International Business Machines Corporation (IBM)
Physical object, Circa 1965
102682531
SLT card
International Business Machines Corporation (IBM)
Physical object, Circa 1965
102682536
Highspeed relay
International Business Machines (IBM)
Physical object
102688502
Highspeed relay
International Business Machines (IBM)
Physical object
102688507
Relay
International Business Machines (IBM)
Physical object
102688514
SMS card
International Business Machines Corporation (IBM)
Physical object, Circa 1959
102682516
SLT card
International Business Machines Corporation (IBM)
Physical object, Circa 1965
102682523
SLT card
International Business Machines Corporation (IBM)
Physical object, Circa 1965
102682528
SLT card
International Business Machines Corporation (IBM)
Physical object, Circa 1965
102682530
SLT card
International Business Machines Corporation (IBM)
Physical object, Circa 1965
102682535
Gear rack
International Business Machines (IBM)
Physical object
102696605
Air filter
International Business Machines (IBM)
Physical object
102688518