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.
Prototype Engelbart Mouse - Replica
Stanford Research Institute (SRI)
Physical object, Circa 1964
102633685
Mesopotamian legal tablet replica
Physical object
102716361
Schickard calculator (replica)
Roubos, Peter
Physical object, ca. 2000
B1626.01
Schickard's calculating machine replica
Roubos, Peter
Physical object
102741758
Mesopotamian medical tablet replica
Physical object
102716357
Fedex Supertracker replica pen
Fedex
Physical object
102673279
Model K Adder (replica)
Stibitz, George Robert
Physical object, 1980
XD127.80
Pascal Adder (Pascaline) (replica)
Guatelli, Roberto
Physical object, Circa 1981
B150.81
Brown Box replica
Baer, Ralph
Physical object, 1968
102711247
First transistor (replica)
Bell Telephone Laboratories, Inc.
Physical object, 1947
102677103
Khipu (Quipu) replica
Brezine, Carrie
Physical object, 2010
102718933
Hollerith Electric Tabulating System (replica)
Guatelli, Roberto
Physical object, 1981
XD231.81
Zuse 1 binary gate (replica)
Zuse, Konrad
Physical object, 1991
X1155.1994
Replica of Napier's calculating box
Roubos, Peter
Physical object
B1627.01
Model of the Dynabook (“dynamic book”) (replica)
Kay, Alan C.
Physical object, 2010
102716364
Replica of "Napier's Bones" multiplication device
Roubos, Peter
Physical object
X2253.2002
UNIVAC I Serial Number Plate (Replica)
United States. Department of Commerce
Physical object, 1952
102630940
Replica of Genaille-Lucas Arithmetique calculator
Roubos, Peter
Physical object
B1631.01
Atanasoff-Berry Add-Subtract Module (replica)
Iowa State University. Ames Laboratory
Physical object, Circa 1996
102624592
Replica of original point-contact device
Physical object
102716300