Introduction to microcircuits. Digital families. Combinational circuits. Flip-flops and shift registers. Read-write random-access memories. Read-only memory devices. Data-word sorting and checking. Sequential circuits. Digital signal generation. Serial communications microcircuits. Parallel communications microcircuits. BCD circuits. The microprocessor and the microcomputer. Microprocessor-controlled A/D converters. Microcomputer-based traffic systems. Keyboard scanner circuits. Application for the 6800 microprocessor: a polyphonic music synthesizer. Special-purpose LSI circuits. Operational amplifiers. Active filters. Regulators. Nonlinear analog microcircuits. Analog signal generation. Sampling and multiplexing circuits. Analog-to-digital converters. Digital-to-analog converters. Phase-locked-loop circuits.