AND Gate Using NAND

NOT GATE USING NAND

HALF SUBTRACTOR

FULLSUBTRACTOR

Full adder

Halfadder

NOR GATE

XNOR

EXP_4(3-bit carry look-ahead adder)

AND Gate

OR Gate

2*2 binary multiplier

2*2 binary multiplier

XOR

OR gate Using NAND

AND GATE USINGNOR

OR GATE USING NOR

NOT Gate Using NOR

(4 to 2) line and (8 to 3) Line Encoders

4x1 Multiplexer

NOT Gate

3 bit parallel adder/subtractor

NAND GATE

EXP_4(3-bit carry look-ahead adder)