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.
Automated Computer Tester, ACT-15
Digital Equipment Corporation (DEC)
Still image, 1969
102758280
Act 15 with PDP-9
Digital Equipment Corporation (DEC)
Still image, 1969-04-07
102758073
PDP-9 ACT 09
Digital Equipment Corporation (DEC)
Still image, 1968-12-02
102757928
ACT Center
Digital Equipment Corporation (DEC)
Still image, 1986-08-28
102767840
ACT 11, PDP-11 unibus tester
Digital Equipment Corporation (DEC)
Still image, 1972
102763009
ACT CCU module
Digital Equipment Corporation (DEC)
Still image, 1977-08
102765252
Mark Primosigh speaking at podium (ACT)
Digital Equipment Corporation (DEC)
Still image, 1989-03-02
102771091
ACT 11 and PDP-11 unibus tester
Digital Equipment Corporation (DEC)
Still image, 1972
102772427
NY ACT demo area showing merchant banking
Digital Equipment Corporation (DEC)
Still image, 1989-04-11
102768862
Interior shots of the Atlanta ACT facility
Digital Equipment Corporation (DEC)
Still image, 1988-07-05
102770913
Andover ACT facility
Digital Equipment Corporation (DEC)
Still image, 1989-01-24
102769634
Interior shots of the Hartford ACT facility
Digital Equipment Corporation (DEC)
Still image, 1989-06-07
102770910
Conductor
Conductor
Still image, 1987
102766007
Lifeboat
Lifeboat
Still image, undated
102785965
Facilities - Dallas, Texas
Digital Equipment Corporation (DEC)
Still image, 1988-07
102748877
DECworld '90 - Australia
Digital Equipment Corporation (DEC)
Still image, 1990-09
102748738
Facilities - St. Louis, Mo.
Digital Equipment Corporation (DEC)
Still image, 1988-07
102755929
Facilities - Australia
Digital Equipment Corporation (DEC)
Still image, 1986
102748861
Facilities - ACTS locations
Digital Equipment Corporation (DEC)
Still image, 1988-05
102748856