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 3803-2/3420 magnetic tape subsystem maintenance manual, vol. 1
International Business Machines Corporation (IBM)
Document, 1979-1983
102724250
IBM Type 83 Card Sorter - horizontal
International Business Machines Corporation (IBM)
Physical object, 1955
X1640.99F
Document viewer 2B
IBM
Physical object
X1640.99P
IBM 557 Card Interpreter
International Business Machines Corporation (IBM)
Physical object, 1950
X1640.99AA
3420 Magnetic Tape Drive Unit
International Business Machines Corporation (IBM)
Physical object, ca. 1980
X1640.99M
Plugboard Control Panel for an IBM 557 intrepreter
International Business Machines Corporation (IBM)
Physical object, 1950
X1640.99AF
3880 Storage Director
International Business Machines Corporation (IBM)
Physical object, 1987
X1640.99CS
Plugboard Control Panel
International Business Machines Corporation (IBM)
Physical object, 1950
X1640.99AE
IBM 3803-2/3420 magnetic tape subsystem maintenance manual, vol. 4
International Business Machines Corporation (IBM)
Document, 1979-1983
102724253
IBM 129 card data recorder
International Business Machines Corporation (IBM)
Physical object, 1971
X1640.99I
Bag of miscellaneous small metal parts
Physical object
102733365
Plug-board contacts
International Business Machines (IBM)
Physical object
102733497
Card pusher blades
International Business Machines (IBM)
Physical object
102733496
Vacuum tube types 7036, 2D21, 5696A
IBM
Physical object
102733525
Card read brushes
International Business Machines (IBM)
Physical object
102733498
3420 Magnetic Tape Drive Unit
International Business Machines Corporation (IBM)
Physical object, ca. 1980
X1640.99L
Collator
International Business Machines (IBM)
Physical object
X1640.99AT
Cam-operated switches
International Business Machines (IBM)
Physical object
102733494
Miscellaneous maintenance parts
Physical object
102733499
IBM 3278 video terminal monitor
International Business Machines Corporation (IBM)
Physical object, 1979
X1640.99CO