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abacus boolean or boolean matrix. grid matrix able to accommodate cards to electronic logic to implement and test in operation logic circuits based on operators and, or, not, nand, nor, ex - or ex - rules and their combinations
abacus boolean or boolean matrix. grid matrix able to accommodate cards to electronic logic to implement and test in operation logic circuits based on operators and, or, not, nand, nor, ex - or ex - rules and their combinations
