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.
Forefront
Digital Equipment Corporation (DEC)
Document, 1996-1998
102750806
Module extenders 1950-1951-1954
Digital Equipment Corporation (DEC)
Still image, 1961-10-06
102749215
Laboratory module kit
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749119
System module 1608 F pulse amplifier
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749289
Laboratory module 3201 Flip-Flop
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749265
Three factory scenes with workers
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749222
System module 4410 H Pulse generator
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749258
Women of Courage - Radcliffe College
Radcliffe College
Document, 1988
102737866
System module 1213 D Flip-Flops
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749272
System module 1502 A level standardizer
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749277
E surnames
Digital Equipment Corporation (DEC)
Document, 1990
102752953
International facilities - Canada
Digital Equipment of Canada Limited
Document, 1976-1986
102737796
Core tester 2105 left 3/4
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749145
System module 4689 A indicator drivers
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749378
System module 6105 E inverters
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749380
System module 6603 D pulse amplifiers
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749385
75 bias panel
Digital Equipment Corporation (DEC)
Still image, ca. 1962
102749392
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