In our day-to-day life, we generally use decimal number system for expressing any quantity. For example, when I go to an electronics shop for purchasing a mobile phone – I say that show me one good mobile phone in the range of Rs. 10,000/-. Here, ‘one’ and ‘10,000’ is the use of decimal number system.
Similarly, Binary number system and digital codes are fundamental to computers and to digital electronics.
So, in digital electronics, it is important to study the Number Systems from the viewpoint of understanding how data are represented before they can be processed by any digital system including a digital computer.