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.
Slide rule simplified
American Technical Society
Document, 1943
102709694
Journal of the Ougthred Society - Private collection materials
Ougthred Society
Document, 2006
102672003
Documents related to the Slide Rule Collection
Document, 1900-1960
102658646
Gearheads : the turbulent rise of robotic sports
Simon & Schuster
Document, 2003
102709874
The Dick Tracy Secret Code Maker Instructions
Document
102791383
The slide rule and how to use it
Grosset & Dunlap
Document, 1942
102709845