- The HexaDecimal number system , also known as just Hex, is a number system made up of 16 symbols (base 16).
- The standard numeral system is called decimal (base 10) and uses ten symbols: 0,1,2,3,4,5,6,7,8,9.
- Hexadecimal uses the decimal numbers and includes six extra symbols. There are no symbols that mean ten, or eleven etc. so these symbols are letters taken from the english alphabets such as A, B, C, D, E and F. Hexadecimal A = decimal 10, and hexadecimal F = decimal 15.
Purpose of HexaDecimal System:
- When working with large digital systems, such as computers, it is common to find binary numbers consisting of 8, 16 and even 32 digits which makes it difficult to both read or write without producing errors especially when working with lots of 16 or 32-bit binary numbers.
- One common way of overcoming this problem is to arrange the binary numbers into groups or sets of four bits (4-bits called nibble). These groups of 4-bits uses another type of numbering system also commonly used in computer and digital systems called HexaDecimal Numbers.
Conversion of Decimal into HexaDecimal:
Conversion of HexaDecimal into Decimal:
Conversion of Binary Number into HexaDecimal:
