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.
MacPaint source code
Apple Computer, Inc.
Software
102658076
Fog/source code
Software, undated
102794039
SetL2 Source Code
Software
102803655
SETL4 Source Code
Software
102805283
Chess 4.6 source code
Software
102743211
Photoshop 1.01 Source Code
Adobe Systems Incorporated
Software, 1990
102788868
Kaypro Source Code
Software, 1982
102788096
AMPRO BIOS Source Code
Software, undated
102788414
Sepia source code
Software, undated
102794726
C86 Kermit source code
Software, undated
102794348
MacTutor Source Code
Software, undated
102794901
Apple Lisa Source Code
Apple
Software, 1983-01-19
102805342
Xerox Alto source code
Xerox PARC
Software, 1972-1985
102706061
MacTutor source code #17
Software, undated
102794819
Exec ROM v1.21 Source Code
Software, undated
102796136
SIL source code for SNOBOL4
Data General Corporation (DGC)
Software, 1985-01-24
102741159
Exec BIOS v1.1 Source Code
Software, undated
102796135
Apple II DOS source code
Software, 1978
102634774
CP/M source code & custom disassembler
Software, undated
102790135
PLAN Talk Source Initialization
Nestar Systems Inc.
Software, 1986-02
102805778