Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL255030ApublicationCriticalpatent/NL255030A/xx
Priority claimed from GB871058Aexternal-prioritypatent/GB840539A/en
G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
G06F7/491—Computations with decimal numbers radix 12 or 20.
G06F7/498—Computations with decimal numbers radix 12 or 20. using counter-type accumulators
G06F7/4981—Adding; Subtracting
H—ELECTRICITY
H03—ELECTRONIC CIRCUITRY
H03K—PULSE TECHNIQUE
H03K21/00—Details of pulse counters or frequency dividers