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.
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Catalog contains over 151,130 records.
SMS card DF YZ
International Business Machines (IBM)
Physical object, Circa 1959
102716842
SMS card DC ZW
International Business Machines (IBM)
Physical object, Circa 1959
102730284
Logic gate assembly
Cadre Industries, Corp
Physical object
102716861
Keypunch printing plate
Physical object
102716640
SMS card AB ZV
International Business Machines (IBM)
Physical object, Circa 1959
102730304
Plug in printed circuit card
Physical object
102716885
Vacuum tube type 5965A
International Business Machines (IBM)
Physical object, Circa 1953
102729908
SMS card
International Business Machines (IBM)
Physical object, Circa 1959
102730169
SMS card
International Business Machines (IBM)
Physical object, Circa 1959
102730171
SMS card
International Business Machines (IBM)
Physical object, Circa 1959
102730222
SMS card
International Business Machines (IBM)
Physical object, Circa 1959
102730227
Vacuum tube type 7044
International Business Machines (IBM)
Physical object, Circa 1954
102716816
SMS amplifier
International Business Machines (IBM)
Physical object, Circa 1959
102730068
RP 247-2 module
Physical object
102716633
Metal desk for IBM 7094 system
Remington Rand
Physical object
102729580
SMS card
International Business Machines (IBM)
Physical object, Circa 1959
102730152
Tape intersystem connection control panel
IBM
Physical object, Circa 1966
102716683
Mold for rotary switch knob
Physical Object
102751987
IBM 757 Print controller
International Business Machines (IBM)
Physical object, Circa 1955
102729207
IBM 717 Printer
International Business Machines Corporation (IBM)
Physical object, Circa 1956
102729579