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.
Search the Catalog
Catalog contains over 151,130 records.
Proceedings of the Institution of Electrical Engineers
Institution of Electrical Engineers (IEE)
Document, 1952-04
102683996
IBM SSEC Number Paths
Still image
102698445
IBM SSEC Printing Mechanism
Still image
102698438
Programming the IBM System/360
Holt, Rinehart and Winston
Document, 1970
102701123
Solid Logic Density Logic Module
Unknown
Physical object
102718344
Memory Chip
Unknown
Physical object
102718332
Technical papers
International Business Machines Corporation (IBM)
Document, 1967-1978
102734218
Symposium on commercially available general-purpose electronic digital computers of moderate price
Office of Naval Research (ONR)
Document, 1952
102734181
Braille translation programming
MITRE Corporation; American Printing House for the Blind; Atlanta Public Schools
Document, 1969-1973
102734198
Proceedings of the APL Users Conference
Computer Center at State University of New York, Binghamton
Document, 1969
102734225
The human side of engineering : tales of General Electric engineering over 80 years
Argus-Greenwood, Inc.
Document, 1972
102676509
Preliminary report: proposed specifications for FORTRAN II for the 704
Document, 1957-08-28
102653976
IBM SSEC Vacuum tube panel unit
Still image
102698441
Tables of the Bessel functions of the first kind of orders 79 through 135
Harvard University Press
Document, 1947
102709686
Legal documents
International Business Machines Corporation (IBM)
Document, 1960
102734203
Punched card machine manuals
International Business Machines Corporation (IBM); Tabulating Machine Co.; Ballistic Research Laboratories, Aberdeen Proving Ground, Maryland
Document, 1934-1949
102734190
John McPherson on Queen Mary
Still image, 1953-12
102698448
IBM SSEC Card Readers
Still image, Circa 1948
102698431
Proceedings of a second symposium on large-scale digital calculating machinery
Harvard University Press
Document, 1949
102709682
NORC history
Document, 1946-1989; bulk 1979-1989
102734209