Byte
A byte is a unit of digital information consisting of 8 bits. It is the fundamental addressable unit in most computer architectures and can represent a single character (letter, number, or symbol) in the ASCII encoding system.
History
The byte was coined by Werner Buchholz in 1956 while working at IBM. The 8-bit byte became standard because it was large enough to encode a single character. The distinction between uppercase 'B' (byte) and lowercase 'b' (bit) is important in computing notation.