Improvements in or relating to electronic digital computing machines

Abstract

Abstract 742,525. Digital electric calculating-apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 18, 1951 [May 18, 1950], No. 26035/51. Divided out of 742,522. Drawings to Specification. Class 106(1). In an electronic digital computing machine comprising a control system for controlling the operation of the machine during each operation cycle in accordance with an instruction word supplied thereto, the system including instruction word storage means for receiving and registering the supplied instruction word during the cycle in which it is to be operative, a separate storage device or B-store for registering at least one instruction-modifying signal, and means for altering the form of the registered instruction word by combination with a modifying signal from the B-store before the use of the instruction word to control the machine operation to be effected during the current operation cycle, the B-store is itself provided with means for modifying the form of an instructionmodifying signal while registered therein. The description is substantially the same as is contained in Specification 742,522 but the claims differ. Specifications 645,691, 657,591, 682,156, 692,853, 705,474, 705,477, [Group XL (b)], 705,479, 707,634, 707,635, 712,172, 731,341, 734,072, 734,073, 734,075, 734,483, 737,863, 737,864, 742,524 and 742,526 also are referred to.

Inventors

• 👤 Frederick Calland Williams
• 👤 Tom Kilburn
• 👤 Geoffrey Colin Tootill
• 👤 Brian Watson Pollard

Bibliographic Details