Understanding Binary, Decimal, and Hexadecimal
Computers represent and process data using different number systems. The three most common systems are Binary, Decimal, and Hexadecimal.
The decimal system is the number system we use in everyday life. It is a base-10 system, which means it uses 10 digits: 0 to 9.
The binary system is used internally by computers and digital devices. It is a base-2 system, meaning it uses only two digits: 0 and 1. Each binary digit is called a bit. Combinations of bits are used to represent numbers, characters, images, and instructions in a computer.
The hexadecimal system is a base-16 system used in computing because it provides a compact way to represent binary values. It uses 16 symbols: 0–9 and A–F, where: A = 10, B = 11, C = 12, D = 13, E = 14, and F = 15.
Understanding how to convert between these number systems is important in areas such as computer architecture, networking, cybersecurity, and digital electronics.
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