Today I learned number systems.
Binary Number System (Base 2)
Uses two digits: 0 and 1
Every binary digit is called a bit
Widely used in computers and digital systems because machines understand only 0 (off) and 1 (on).
Decimal Number System (Base 10)
Uses ten digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
This is the system we use in our daily life for counting and calculations.
Hexadecimal Number System (Base 16)
Uses 16 symbols 0–9 and A–F
A = 10, B = 11, C = 12, D = 13, E = 14, F = 15
Very common in programming and memory addressing because it is compact and easy to convert from binary.
Octal Number System (Base 8)
Uses eight digits: 0–7
Each digit represents a power of 8
Sometimes used in computing as a shorter way to represent binary numbers.
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