Combinational Circuit
In combinational circuits, the output is only dependent on present inputs. This is in contrast with Sequential Circuits.
Arithmetic Circuits
Arithmetic Circuits are circuits used for performing operations such as addition, subtraction, multiplication, etc. of binary numbers.
Binary Half-Adder Circuit
Addition is taking two bits, adding them, producing a sum and a carry out.
Binary Full-Adders
Full adders do the same function of addition but with -bit numbers. We need to add a carry in signal.
Implementation of Binary Full-Adders
Ripple Adder
Carry Look-Ahead Adder
Ripple adders are very slow for large numbers of bits. We can figure out a way to calculate carry ins faster.