A Manual of Operation for the Automatic Sequence Controlled Calculator
MIT Press, 1946 - Computers - 561 pages
In the summer of 1944, at a dedication ceremony at Harvard's Cruft Laboratory, one of the world's first automatic digital calculating machines was unveiled to the public. The machine was the Automatic Sequence Controlled Calculator, more commonly known as the Harvard Mark I. The staff of the Harvard Computation Laboratory was unprepared for the interest which news of the machine's dedication touched off, and in response to many inquiries they arranged for the publication of this Manual of Operation.
If the Mark I itself was a milestone in digital computing, so was this Manual: it was one of the first publications to address the fundamental question of how to get a computer to solve problems. Scattered throughout the book are listings of operation codes that represent sequences of operations the Mark I would carry out: these are among the first examples anywhere of what are now called computer programs. Both this Manual of Operation and the computer it describes reveal the profound transition from an age when computing was something human beings did, with varying degrees of mechanical aids, to one where machines themselves do most of the work.
A Manual of Operation for the Automatic Sequence Controlled Calculator was originally published in 1946 by Harvard University Press. It is Volume VII in the Charles babbage Institute reprint series.
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Acad Aiken Amer Analytical Engine Angew argument argument control calculator card columns card feed Charles Babbage Institute check ctr CM rH coefficients computation Counter Magnets cycles decimal point lies deliver the product differential equations digits DR Compare ELECTRICAL CIRCUITS Finite Differences functional tape Integration intermediate counter interpolation Invert Jour Leipzig lies between columns lies in ctr line of coding logarithm main sequence Math Mathematical MC-DR method MISC Miscellaneous column multiplication numerical integration o o o ooooo ooooo ooooo operating decimal point Paris Phys plugboard Plugging Instructions plughubs print counter print ctr Proc product to ctr punched cards quantity read-in read-out reset ctr rH CM rH rH rH sequence control sequence mechanism serial number sine in-out counter SIO counter SOLUTION OF EXAMPLES starting tape storage counter switch Teubner typewriter Uath Uber Uech value tape Zeit zero