PREVIOUSLY ASKED IN:
WBPSC Miscellaneous Preliminary 2023
Answer
Binary
Explanation
The binary number system is predominantly used in computing and programming. It consists of only two digits: 0 and 1. Computer hardware and transistors operate using electrical signals that correspond to either an 'on' (1) or 'off' (0) state, making binary the fundamental language of computers.
Key Points
- > Binary is a Base-2 number system.
- > It uses only two digits: 0 and 1.
- > A single binary digit is called a 'Bit'.
- > 8 bits make up a 'Byte'.
- > Decimal is the Base-10 system used in daily life.
- > Hexadecimal is Base-16 (0-9 and A-F).
- > Octal is Base-8 (0-7).
Additional Information
Number Systems
| System | Base | Digits Used |
|---|---|---|
| Binary | 2 | 0, 1 |
| Octal | 8 | 0-7 |
| Decimal | 10 | 0-9 |
| Hexadecimal | 16 | 0-9, A-F |
Memory Tips
- Bi means two: Just like a bicycle has two wheels, Binary has two states (0 and 1).