Table of Contents
Number system
What is a Number System?
A number system is a way to represent numbers using a set of symbols (digits). The position of each digit gives it a weight or value depending on the base of the system.
Common Number Systems:
| Number System | Base | Digits Used | Example |
|---|---|---|---|
| Binary | 2 | 0, 1 | 1101₂ |
| Octal | 8 | 0 to 7 | 745₈ |
| Decimal | 10 | 0 to 9 | 495₁₀ |
| Hexadecimal | 16 | 0–9, A–F | 1F4₁₆ |
Digital electronics represents discrete signals instead of signals in a continuous range. It uses two binary levels 0’s (corresponding to false) and 1’s (corresponding to true). The main reason for advancement in digital electronics is integrated circuits (ICs).
Number system is an age old method to represent numerals (Fig. Below). Decimal number system is the most common number system and binary number system is used by computers.
