Decimal (Base 10)
The standard system for denoting integer and non-integer numbers. It is the most widely used number system in daily life.
Digits: 0-9
Understanding Number Bases
Hexadecimal (Base 16)
Often used in computing to represent binary data in a more human-readable form. It uses the digits 0-9 and letters A-F.
Digits: 0-9, A-F
Example: Color codes like #FF5733.
Binary (Base 2)
The fundamental language of computers. Each digit represents a single bit (0 or 1).
Digits: 0, 1
8 bits = 1 Byte (0-255).
Octal (Base 8)
Less common today, but historically used in computing (e.g., Unix file permissions). It uses digits 0-7.
Digits: 0-7
One octal digit represents exactly 3 binary bits.