The combination method of operating the Burroughs adding machine. Lowrie Davidson.

The combination method of operating the Burroughs adding machine

Publisher Information: 1936.

[Davidson, Lowrie.] The combination method of operating the Burroughs adding machine [wrapper title]. N.p., ©1936. Original blue printed wrappers. [2], 12 [2]pp. 208 x 145 mm.

In the days before electronic digital computing, the rate of speed at which mechanical calculation was performed depended to a large part upon the technique and speed of the human computer using the machine. Davidson was an adding machine instructor at Bank of America, and the California state champion adding machine operator for the years 1929, 1930, and 1931. His “combination method” involved depressing the keys and motorbar of the Burroughs adding machine simultaneously, increasing the operator’s speed by as much as 67 percent. Origins of Cyberspace 285.

Book Id: 44650

Price: $150.00

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