The advantages of the single-chip microcomputer are discussed. This type computer enables new intelligence to be introduced in even the simplest of products, and in very low component count random logic systems. The single-chip microcomputer at last provides the possibility of employing the microprocessors which enable work to be done in parallel with processors acting in master/slave relationships simultaneously. This removes the last possible attraction that random logic may have which is the inherent ability to perform multiple digital tasks in parallel.