In digital electronics, adders and subtractors both are the combinational logic circuits (a combinational logic circuit is one whose output depends only on the present inputs, but not on the past outputs) that can add or subtract numbers, more specifically binary numbers. Adders and subtractors are the crucial parts of arithmetic logic circuits in processing devices like microprocessors or microcontrollers. In this article, we will discuss adders and subtractors in detail. What is an Adder? We have different types of digital devices like computers, calculators that can perform a variety of processing functions like addition, subtraction, multiplication, division, etc. The ... Read More