Write short note on hexadecimal number system?

1.	Write short note on hexadecimal number system?
Answer» A hexadecimal number is represented using base 16. Hexadecimal or Hex numbers are used as a shorthand form of binary sequence. This system is used to represent data in a more compact manner. Since 16 symbols are used, 0 to F, the notation is called hexadecimal. The first 10 symbols are the same as in the decimal system, 0 to 9 and the remaining 6 symbols are taken from the first 6 letters of the alphabet sequence, A to F, where A represents 10, B is 11, C is 12, D is 13, E is 14 and F is 15. Eg: The hexadecimal sequence (25)₁₆ has the decimal equivalent: (25)₁₆ = 2 × 16¹ + 5 × 16⁰ = 32 + 5 = (37)₁₀

Answer»

A hexadecimal number is represented using base 16. Hexadecimal or Hex numbers are used as a shorthand form of binary sequence. This system is used to represent data in a more compact manner. Since 16 symbols are used, 0 to F, the notation is called hexadecimal. The first 10 symbols are the same as in the decimal system, 0 to 9 and the remaining 6 symbols are taken from the first 6 letters of the alphabet sequence, A to F, where A represents 10, B is 11, C is 12, D is 13, E is 14 and F is 15.

Eg: The hexadecimal sequence (25)₁₆ has the decimal equivalent:

(25)₁₆ = 2 × 16¹ + 5 × 16⁰
= 32 + 5 = (37)₁₀

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