Introduction and Basic Principles -- introduction * Boolean algebra * Number systems * Combinational Logic -- Introduction * Sum of products representation * The negative logic approach * Minimalisation * Common combinational circuits * The 4-bit adder; a design example * Systollic (iterative) arrays * General sums of products circuits * Hazards in combinational circuits * Fault diagnosis * Sequential ciruits -- Introduction * Asynchronous sequential circuits * Flip flops * Registers * Counters * Synchronous sequential circuits * Choosing a Means of Implementation -- Introduction * Technology * The level of integration * Possible Design Routes -- Discrete implementation * PAL, PLA, EPLD implementation * Mask programmable gate arrays * Field programmable gate arrays * Standard cell * Full custom * VHDL * Digital Meets Analogue * Index.