microcomputer
Microcomputer 
Its central processing unit is a microprocessor, contained on a single integrated circuit.
Microcomputers are the smallest of the four classes of computer (the others are supercomputer, mainframe, and minicomputer). Since the appearance in 1975 of the first commercially available microcomputer, the Altair 8800, micros have become ubiquitous in commerce, industry, and education.
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