Hexadecimal Number System - mbits-mirafra/digitalDesignCourse GitHub Wiki

Hexadecimal Number system:

  • The number system with base or radix 16 is called as hexadecimal number system.

  • The hexadecimal number system uses 16 symbols to represent numbers.

  • These symbols are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, where A = 10; B = 11; C = 12; D = 13; E = 14; F = 15.

Why Hexadecimal?

  • When bases are larger, representing digits are lesser hence are easy to read.

  • Easy to communicate as symbols are reader friendly.

  • It utilizes highest storage space and is the best system than decimal.

  • Maximum number of various combinations can be represented using hexa as there are larger number of symbols compared to other systems.

Application:

  • In HTML and CSS, hexadecimal is used to represent colors. For Example:

  • In cryptography, hexadecimal is used to represent keys and encrypted data. For example, AES-128 encryption uses a 128-bit key, which can be represented as a 32-digit hexadecimal number.

  • In digital communication, hexadecimal is used to represent data being transmitted. For example, the hexadecimal number 0x12 0x34 0x56 might represent a packet of data being sent over a network.

  • In computer memory, hexadecimal is used to represent memory addresses. For example, the memory address 0x7FFF8000 represents a specific location in memory.

1.Hexadecimal to Binary Conversion

2.Hexadecimal to Decimal conversion

3.Hexadecimal to Octal conversion