Automatic Sequence-Controlled Calculator

In May 1944, the Staff of the Computation Project began operations with the Automatic Controlled Calculator as an activity of the Bureau of Ships. One of the first tasks undertaken was the preparation of a report setting forth the coding procedures of the calculator. This was followed by detailed plugging instructions, which unfortunately were hardly completed before the code book was out of date. In the succeeding months, computing techniques were developed so rapidly that stabilized operating instructions could not be prepared.