What is Byte

By Xah Lee. Last updated: .

A byte is eight binary digits , as a unit. For example:

It has a total of 256 possible values. (2^8 = 256)

Byte is a critical concept in computing. Computer files, data, are all ultimately converted to a sequence of bytes, to be processed by CPU or stored on memory devices. For example, English alphabet, each letter, is encoded as a byte. See ASCII Characters

Binary, Hexadecimal