In computer architecture, 8-bit integers, memory addresses, or other data units are those that are 8 bits (1 octet) wide. Also, 8-bit CPU and ALU architectures are those that are based on registers, address buses, or data buses of that size. '8-bit' is also a generation of microcomputers in which 8-bit microprocessors were the norm. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.