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.
PLATO V keyboard
Regency Systems, Inc.
Physical object
102654833
Plasma display terminal keyboard
Physical object
102730895
Plasma Displays
Electro-Plasma, Inc.; Carroll Manufacturing
Document, Circa 1978
102720071
PLATO V keyboard
Regency Systems, Inc.
Physical object
102654834
Plato V student terminal display
Carroll Manufacturing
Physical object
102730891
Plasma display terminal
Magnavox Company
Physical object
102730896