Collections

Catalog Search

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.

Result 141-160 of about 364

SMS card
International Business Machines (IBM)
Physical object, Circa 1959
102730229

SMS card DD ZX
International Business Machines (IBM)
Physical object, Circa 1959
102730154

SMS card
International Business Machines (IBM)
Physical object, Circa 1959
102730159

SMS card
International Business Machines (IBM)
Physical object, Circa 1959
102730161

Vacuum tube type 5Y3GT
Sylvania
Physical object, Circa 1950
102716818

SMS card
International Business Machines (IBM)
Physical object, Circa 1959
102629838

SMS card
International Business Machines Corporation (IBM)
Physical object, Circa 1959
102730077

IBM 655 Power unit
International Business Machines (IBM)
Physical object, 1954
102728116

Reproduction rotary switch knobs

Physical Object
102751989

Three position push button switch holders

Physical Object
102751991

SMS card DB ZZ
International Business Machines (IBM)
Physical object, Circa 1959
102730287

SMS card APM
International Business Machines (IBM)
Physical object, Circa 1959
102730294

SMS card AD YY
International Business Machines (IBM)
Physical object, Circa 1959
102730299

Marginal check power supply for IBM 709
Ohmite
Physical object
102728977

IBM 722 Punch
International Business Machines (IBM)
Physical object, Circa 1954
102729204

Terminator

Physical object
102729920

IBM 7094 Trim
International Business Machines (IBM)
Physical object, Circa 1964
102729982

SMS card RL
International Business Machines (IBM)
Physical object, Circa 1959
102716826

SMS card DK
International Business Machines (IBM)
Physical object, Circa 1959
102716838

SMS card
International Business Machines Corporation (IBM)
Physical object, Circa 1959
102730078