generator for memory unit equal longitudinal central government

摘要

A network for continuously generating a longitudinal parity word for the main memory of a digital computer as new data is entered therein. The network includes a register having a number of stages equal to the word size of the memory, for storing the instantaneous value of the longitudinal word, plural Exclusive OR circuits connected individually to the input of each of the stages and having a first input of each connected to the output of the corresponding parity register stage and a second input of each Exclusive OR circuit adapted to be selectively connected alternately to the output of individual stages of either the memory write data register or its output register.