The 4-bit and 8-bit microprocessors became available in the mid-1970s, and initial applications were primarily in the areas of machine control and instrumentation. As the price of the microprocessors and memory began to decline, the applications mushroomed in almost all areas, such as video games, word processing, and small-business applications.early microcomputers were designed around 8 bit microprocessors. Since then 16, 32, 64 bits microprocessors, such as Intel 8086/88, Pentium I to IV, Motorola 68000, and the power PC series have been introduced, and recent micro computers are designed around these microprocessors. Present day micro computers can be classified in 4 groups: personal (or business) computers (PC), work stations, single board, and single chip microcomputers (microcontrollers).
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