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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.

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Catalog contains over 143,878 records.

Result 1-5 of about 5

Dictaphone recording cylinder
American Dictating Machine Co.
Physical object
102678043

Dictaphone recording cylinder
Standard Record
Physical object
102678046

Dictaphone recording cylinder
American Dictating Machine Co.
Physical object
102678044

Dictaphone, Shaver, Transcriber (Dictrola) and dictating machine
Columbia Graphophone Company
Physical object
D123.79

Phonograph recording cylinder
Standard Record
Physical object, 1930 ca.
102678045