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 151,130 records.
Toothed belts
International Business Machines (IBM)
Physical object
102733492
Solenoids
International Business Machines (IBM)
Physical object
102733500
IBM 519 Document Processing Machine
International Business Machines Corporation (IBM)
Physical object, 1950
X1640.99CV
Plugboard Control Panel for IBM 557 Alphabetic interpreter
International Business Machines Corporation (IBM)
Physical object, 1950
X1640.99AC
Plugboard Control Panel for IBM 557 interpreter
International Business Machines Corporation (IBM)
Physical object, 1950
X1640.99AH
Plugboard Control Panel for IBM 519
International Business Machines Corporation (IBM)
Physical object, 1950
X1640.99AM
Plugboard panel for an IBM 557 interpreter
International Business Machines Corporation (IBM)
Physical object, Circa 1963
102633374
Plugboard panel for an IBM 557
International Business Machines Corporation (IBM)
Physical object, Circa 1963
102633367
Punch Unit from IBM card punch
International Business Machines (IBM)
Physical object
102677226
Fastener kit
International Business Machines (IBM)
Physical object
102733489
Relays
Physical object
102733491
Spare parts for IBM card punch and card sorter
International Business Machines (IBM)
Physical object
102688418
Plugboard Control Panel for an IBM 557 interpreter
International Business Machines Corporation (IBM)
Physical object, 1950
X1640.99AD
Plugboard Control Panel for IBM 519 reproducing punch
International Business Machines Corporation (IBM)
Physical object, 1950
X1640.99AI
Plugboard Control Panel
International Business Machines Corporation (IBM)
Physical object, 1950
X1640.99AN
Plugboard panel for an IBM 557 interpreter
International Business Machines Corporation (IBM)
Physical object, Circa 1963
102633373
Plugboard panel for an IBM 557
International Business Machines Corporation (IBM)
Physical object, Circa 1963
102633366
Plugboard rack
Wright Line, Inc.
Physical object
X1640.99AS
Bus and tag interface terminators
International Business Machines (IBM)
Physical object
102677225
3203 Printer Model 5 manuals
International Business Machines Corporation (IBM)
Document, 1979; 1980; 1982
102707647