minicomputer

n. multiprocessing computer that can serve between 4 and 200 users simultaneously (Computers)

Minicomputer (colloquially, mini) is a largely obsolete term for a class of multi-user computers that lies in the middle range of the computing spectrum, in between the largest multi-user systems (mainframe computers) and the smallest single-user systems (microcomputers or personal computers). Formerly this class formed a distinct group with its own hardware and operating systems. While the distinction between mainframe computers and smaller computers remains fairly clear, contemporary middle-range computers are not well differentiated from personal computers, being typically just a more powerful but still compatible version of personal computer. More modern terms for minicomputer-type machines include midrange systems (IBM parlance), workstations (Sun Microsystems and general UNIX/Linux parlance), and servers.
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Noun
1. a digital computer of medium size
(hypernym) digital computer

n. minicomputer, small computer

n. minicomputer, multiprocessing computer that can serve between 4 and 200 users simultaneously (Computers)