Hexadecimal Notaiton

Definition: A word is a machine-specific grouping of bytes. For us, a word will be 4 bytes (32-bit architecture) through 8-byte (or 64-bit architectures) words are more common now.

Base-16 representation systems is called hexadecimal system. It consists of the numbers from 0 to 9 and the letters a, b, c, d, e and f (which convert to the numbers from 10 to 15 in decimal notation).

Notation: 0x denotes hexadecimal.

Note: each hexadecimal character is a nibble (4 bits).