Conclusions: Arithmetic Logic Unit (ALU) for the Programmable Logic Device (RPLD) has been presented in this letter in a reversible way. The reversible version ALU aims at eliminating the energy ...

An earlier logic chip used as a building block for CPUs. Bit slice processors used arithmetic logic units (ALUs) that typically came in 4-bit increments, although 1- and 2-bit devices were also made.

Bit slice processors usually consist of an arithmetic logic unit (ALU) of 2, 4 or 8 bits and control lines. Using multiple, simpler ALUs was seen as a way to increase computing power in a cost ...