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 Keyboard
Physical object
102730841
Plato Medal
Unknown
Physical object
102718132
PLATO System
Control Data Corporation (CDC)
Document, ca. 1978
102641263
Plato Terminal
Control Data Corporation (CDC)
Physical object
X458.84
CDC PLATO
Control Data Corporation (CDC)
Still Image, ca. 1975
102627692
PLATO Paperweight
Lazer Works
Physical object
102718131
PLATO V keyboard
Regency Systems, Inc.
Physical object
102654833
The PLATO IV Architecture
Illinois, University of (Urbana-Champaign)
Document, 1972-05
102649345
Plato at 50 shirt
peter Zelchenko
Physical object
102743515
Plato at 50 patch
Peter Zelchenko
Physical object, 2010
102743514
Color PLATO Terminal Prototype
Control Data Corporation (CDC)
Physical object
102730838
Wireless PLATO keyboard, prototype
Control Data Corporation (CDC)
Physical object
102743308
The Plato IV architecture
University of Illinois, Computer-based Education Research Laboratory
Document, 1971-04
102723110
PLATO V keyboard
Regency Systems, Inc.
Physical object
102654834
PLATO portable terminal mockup
Control Data Corporation (CDC)
Physical object
102730843
PLATO III Terminal
Control Data Corporation (CDC)
Physical object
102743309
Plato System Documents
University of Illinois at Urbana Champaign
Document
102801366
Plato V student terminal display
Carroll Manufacturing
Physical object
102730891
PLATO Information Services Terminal Keyboard
Control Data Corporation (CDC)
Physical object
102730839
Society, education, the PLATO system
Control Data Corporation
Moving image
102695897