Combinational Logic and Arithmetic Circuits

Combinational vs. Sequential Circuits, Half Adder, Time Delay for the Half Adder, NAND vs. XOR, Full Adder, Output delay, Full-adder implemented with two half adders and one OR gate, Ripple Carry Adder, Carry Look-Ahead Adder, 4 Bit-Adder Subtractor, BCD ADDER.