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.
IBM 3151 ASCII Display Station Guide to Operations
International Business Machines Corporation
Document, 1987
102799525
3505 Card Reader
International Business Machines Corporation (IBM)
Physical object, ca. 1980
X1640.99A
Plugboard Control Panel Rack
Wright Line, Inc.
Physical object
X1640.99BF
Plugboard
International Business Machines Corporation (IBM)
Physical object
X1640.99BA
Plugboard
International Business Machines Corporation (IBM)
Physical object
X1640.99AX
Plugboard
Physical object
102673797
Air filter for IBM 4301
Physical object
X1640.99CW
Spring assemblies for 12-hole device
International Business Machines (IBM)
Physical object
102696612
Cunningham circuit breaker
International Business Machines (IBM)
Physical object, Circa 1957
102688520
3880 Storage Control Maintenance Information
International Business Machines Corporation (IBM)
Document, 1979-1980
102707609
3420 MOD 4, 6, 8 ALD Vol. 1
International Business Machines Corporation (IBM)
Document, 1978-1982
102707907
Toothed rack
International Business Machines Corporation (IBM)
Physical object
102682541
Plugboard panel for an IBM 519
International Business Machines Corporation (IBM)
Physical object, 1946
102633364
Plugboard
Physical object
102673795
IBM spare parts
International Business Machines (IBM)
Physical object
X1640.99CY
Motor for IBM 4301
Gast Manufacturing
Physical object
102677223
Lamps
Sunray Lighting, Inc.
Physical object
102696610
IBM 4245 Printer Models 12 and 20 Maintenance Information Manual Volume 2
International Business Machines Corporation (IBM)
Document, 1986
102707905
IBM spare parts
International Business Machines Corporation (IBM)
Physical object
102682544
Plugboard Control Panel for an IBM 519 intrepreter
International Business Machines Corporation (IBM)
Physical object, 1950
X1640.99AO