Due to the implementation of a new Collection Management System, CHM staff will not be able to assist researchers and in-person visits until March 2025.
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 151,033 records.
Slide rule
Physical object, ca. 1970
102785375
Y2K problem - correspondence with Capers Jones
Document, 1998
102785449
Presentation slides
Document, 1970-1978
102785615
Y2K problem - articles on public reaction
Document, 1999
102785443
Y2K problem - BMR Software logos
Document, ca. 1997
102785448
Universal Time Engine - specifications (excerpt)
Document, 2001
102785442
Universal Time Engine - project summary
Document, 2001
102785440
Reports - Rand Corporation
Document, 1953-1954
102785426
IBM 650 - Flair system
Document, 1955
102785386
Association for Computing Machinery (ACM 70)
Document, 1970
102785362
Y2K problem - articles on projection and potential impact of Y2K problem
Document, 1998
102785444
IBM 650 programming - lab book
Document, 1952-1955
102785388
Code and text processing - International Organizatino for Standardization
Document, 1967-1972
102785369
Universal Time Engine - project planning/technical specifications/programs
Document, 2000
102785439
Universal Time Engine - proposal
Document, 2001
102785441
Y2K problem - website directory printouts
Document, 1997
102785458
Scrapbooks
Document, 1955-1982
102785427
Biographical papers
Document, 1943-1973; 1990-1992
102785363
Universal Time Engine/program language
Document, 2000-2001
102785438
Y2K problem - website articles and links
Document, ca. 1997-2000
102785457