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 151,012 records.
PLATO Keyboard
Physical object
102730841
Plato Medal
Unknown
Physical object
102718132
Plato Terminal
Control Data Corporation (CDC)
Physical object
X458.84
PLATO Paperweight
Lazer Works
Physical object
102718131
PLATO V keyboard
Regency Systems, Inc.
Physical object
102654833
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
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 V student terminal display
Carroll Manufacturing
Physical object
102730891
PLATO Information Services Terminal Keyboard
Control Data Corporation (CDC)
Physical object
102730839
Plato V student terminal display
Carroll Manufacturing
Physical object
102730893
PLATO portable plasma terminal display prototype
Control Data Corporation (CDC)
Physical object
102730855
PLATO portable plasma terminal display prototype case
Control Data Corporation (CDC)
Physical object
102730856
Control Data Plato Information Service Terminal Display Unit
Control Data Corporation (CDC)
Physical object
102747178
Acoustic Coupler 1200/150 BAUD
Control Data Corporation (CDC)
Physical object
102745615
Plasma video display
Owens Glass
Physical object, ca. 1973
X676.86