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.
Core tester 2102G right 3/4
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749157
Memory tester 1516 front
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749164
Core tester 2108-C front
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749169
Memory tester 1517 panel closeup
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749152
Cartridge RL02K
Digital Equipment Corporation (DEC)
Still image, ca. 1985
102749594
PDP-15 at Canadian Broadcasting Companny
Digital Equipment Corporation (DEC)
Still image, 1976
102749323
743 power supply
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749397
765 power supply
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749400
DECgraph slide presentation
Digital Equipment Corporation (DEC)
Still image, 1983
102753110
Mounting panel 1901
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749087
Mounting panels
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749448
Digital's VAXcluster technology
Digital Equipment Corporation (DEC)
Still image, ca. 1982
102749645
Classroom
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749467
Factory scene
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749462
Field Service slide show
Digital Equipment Corporation (DEC)
Still image, 1981-09
102753090
Retouched ADX computer
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749575
Facilities - Finland
Digital Equipment Corporation (DEC)
Still image, 1994-10
102748882
6603 module
Digital Equipment Corporation (DEC)
Still image, 1964-03-13
102753538
Keyboard
Digital Equipment Corporation (DEC)
Still image, 1979-09
102755988
Microtape 555/550
Digital Equipment Corporation (DEC)
Still image, 1964-03-06
102753514