Arithmetic logic units (ALU) perform arithmetic and logic operations on binary data inputs. In some processors, the ALU is divided into two units: an arithmetic unit (AU) and a logic unit (LU). In ...

Built as an educational demonstrator, this is a complete arithmetic-logic unit (ALU) using discrete relays — and not high-density types either — these are the big honking clear-cased kind.

2 A 2-bit arithmetic logic unit. This is the width of the two input words on which the device performs arithmetic and logic operations. 4 A 4-bit arithmetic logic unit. This is the width of the two ...