The first widely adopted 8-bit microprocessor was the Intel 8080, being used in many smart cards and hobbyist computers of the late 1970s and early 1980s, often running the CP/M operating system. The Zilog Z80 (compatible with the 8080) and the Motorola 6800 were also used in similar computers. The Z80 and the MOS Technology 6502 8-bit CPUs were widely used in home computers and game consoles of the 70s and 80s. Many 8-bit CPUs or microcontrollers are the basis of today's ubiquitous embedded systems.
There are 28 (256) possible values for 8 bits.(in binary)
About 55% of all CPUs sold in the world are 8-bit microcontrollers or microprocessors.
Examples of 8-bit processors (very incomplete):
Reaching down: 32-bit processors aim for 8 bits: the ongoing effort to supply low-cost, 32-bit processors has them beginning to encroach on the territory that 8-bit processors now own.(design feature)
May 01, 2005; A new breed of low-cost, 32-bit devices is targeting the healthy market share that 8- and 16-bit devices have exclusively...