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.
Inforonics
Digital Equipment Corporation (DEC)
Document
102650765
LISP
Massachusetts Institute of Technology (MIT)
Document
102665031
Instruction List
Digital Equipment Corporation (DEC)
Document
102636228
Action
Massachusetts Institute of Technology (MIT)
Document
102665171
System Modules
Digital Equipment Corporation (DEC)
Document, 1964
102652392
MIDAS
Massachusetts Institute of Technology (MIT)
Document
102665061
Cable schedule
Digital Equipment Corporation (DEC)
Document
102652447
Floating Point Arctangent
Digital Equipment Corporation (DEC)
Document, 1962-12-31
102650077
Check Parity
Digital Equipment Computer Users Society (DECUS)
Document, 1962-10-21
102650053
Floating Output Routine
Digital Equipment Corporation (DEC)
Document, 1962-12-31
102650072
Rotate Test
Bolt, Beranek and Newman, Inc. (BBN)
Document, 1962-05-14
102650109
Teletypesetter
Digital Equipment Corporation (DEC)
Document, 1961-12-04
102650318
Divide Subroutine
Digital Equipment Corporation (DEC)
Document, 1962-11-13
102650325
Program Library Index
Digital Equipment Corporation (DEC)
Document, 1964-02-13
102650320
Tape Conversion Program
Itek Laboratories
Document, 1961-03-14
102650337
Process Scheduling
Massachusetts Institute of Technology (MIT)
Document, 1966-06-09
102650611
Software Applications Index
Digital Equipment Computer Users Society (DECUS)
Document
102650128
Drum Test
Digital Equipment Corporation (DEC)
Document, 1963-06-17
102650630
Back-search Readinbuffer
Digital Equipment Corporation (DEC)
Document, 1961-11-28
102650135
PDP-1C-2 AC Control
Digital Equipment Corporation (DEC)
Document, 1960
102650793