Individual documents may be accessed by clicking on their entry in the index below.
The Equationor, 1892 - a large circular slide rule [PDF - 9.2 MB]
Gunter, Edmund (1581-1620) a biography [PDF - 8.4 MB]
Hollerith's Patent for his original tabulating machines, 1889 [PDF - 8 MB]
Principles of IBM Accounting, - IBM, 1950 film strip [PDF - 422 MB]
Rabdologiae, 1617 - Napier's famous book in which he introduces Napier's bones,
his chessboard calculator, and his multiplicationis promptuario [PDF - 117 MB]
Ballistic Research Laboratory, First Weik Report (A Survey of Domestic Electronic Digital Computing Systems), 1955
Commercially Available General-Purpose Electronic Digital Computers of Moderate Price,
1952 - a survey of computers available at the beginning of the computer era.
Computing Before Computers - a book on the history of computing. Edited by William Aspray.
IBM Card-Programmed Electronic Calculator (CPC) a paper describing the CPC
Instruction sets and basic "pocket card" information for many different computers.
LGP-30 Manual - for a vacuum tube, drum memory computer
Reckoners - a book by Paul Ceruzzi on pre-computer calculating machine
