Introduction to Digital Systems and Boolean Algebra Binary, Logic Minimization and Implementation, Karnaughmaps, NAND and NOR implementation, Quine-McCluskey method, Logic families, Combinational Logic Multi level gate circuits, Parity circuits and comparators, Representation of signed numbers, Introduction to HDL (VHDL /Verilog), Register transfer language, Sequential Logic Latches and flip-flops, Registers and counters, HDL description of sequential circuits, State Machine Design, State machine as a sequential controller, Moore and Mealy state machines, Derivation of state graph and tables, Sequence detector, equivalent state machines, State machine modelling based on HDL, Linked state machines, Advanced Topics: Static and Dynamic hazards; race free design;