Built–in Integrity Test. Used in AIS equipment.
Binary Digit. One of the digits 0 or 1 used in binary notation. It is the basic unit of information in computers, data processing or digital communications.
Built–in Test Equipment. Used in radio and other electronic equipment.
A group of bits taken together and treated as a unit in computers, data processing or digital communications. Typically one byte consists of 8, 16, 32, 64 or 128 bits, depending on the technology.