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.
Mentext speccifications
Mentel, Inc.
Document, 1977
102683850
SUPERWYLBUR
Optimum Systems Incorporated
Document, 1976
102687035
English electric d.e.u.c.e. programming manual
English Electric Company
Document, 1956
102638161
Dibol manual
Digital Equipment Corporation (DEC)
Document, 1970
102683426
Extended ALGOL User's Manual
Data General Corporation (DGC)
Document, 1975-07
102683363
Mathatron Computer
Mathatronics, Inc.
Document, Circa 1965
102683844
PDP-11 bulletins
Digital Equipment Corporation (DEC)
Document, 1973-1979
102683344
Macro-9 assembler advanced software system
Digital Equipment Corporation (DEC)
Document, 1967-08
102683318
HM-4118 - Reference manual
Hughes Aircraft Company
Document, 1966-04
102683510
GN-99 and 909 computer information
GRI Computer Corporation
Document, 1969
102686812
Glypnir reference manual
Glypnir
Document, 1974
102686817
Hughes H4400 computer system - Preliminary engineering performance data
Hughes Aircraft Company
Document, 1969
102683508
DASHER D3 Display Terminal Programmer's Reference
Data General Corporation (DGC)
Document, 1979
102683375
DG/L Runtime Library User's Manual
Data General Corporation (DGC)
Document, 1978-10
102683368
GE-625/635 FORTRAN IV
General Electric Company (GE)
Document, 1966-12
102686862
Detail specification airborne digital computer
Hughes Aircraft Company
Document, 1965-07-30
102653359
GE-600 line comprehensive index
General Electric Company (GE)
Document, 1970-03
102686855
Datanet-760 keyboard/display subsystem manual
General Electric Company (GE)
Document, 1966-04
102686867
GE-625/635 integrated data store
General Electric Company (GE)
Document, 1965-08
102686850
General precision informational material
General Precision, Inc.
Document, 1965-1966
102686831