ALU

views updated May 23 2018

ALU Abbrev. for arithmetic and logic unit. A portion of the central processor that generally forms functions of (usually) two input values and produces a single output result. These functions usually consist of the common arithmetic operations, the common logic operations, and shift operations. Associated with the ALU is a condition-code register that holds certain properties of the result of the most recent ALU operation (see also program status word).

ALU

views updated May 18 2018

ALU Computing arithmetic and logic unit