Applications: Linking microprocessors to the real world: A proper interface serves as communications traffic cop, setting priorities and directing the flow of messages

Microcomputers promise the engineer new design freedom. But, to harness the potential power of tiny computer chips, he has to enter an often unfamiliar world where software and circuitry must be skillfully combined. In forging the connections between various pieces of microcomputer system equipment, the engineer faces a task that demands the full use of these skills.