Logical combinational circuits - characterization of the logical system, logic variable, logical operator, Bool's algebra basics, logical function in additional and multiplication style, minimization of the functions, combination circuits realization, hazardous states in logical circuits, removal methods, logical sequential synchronous and asynchronous circuits, description of the passing functions and outputs, analysis of synchronous sequential circuits, memory elements RS, RST, D, JK, register, shift register, bidirectional shift register, synchronous and asynchronous counter, special flip-flop circuits, multiplexer a demultiplexers, binary adder, multiplier and comparative function generator.