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=== Microcomputers (personal computers) ===
[[Microcomputer]]s became the most common type of computer in the late 20th century. The term “microcomputer” was introduced with the advent of systems based on single-chip [[microprocessor]]s. The best-known{{Citation needed|date=September 2022}} early system was the [[Altair 8800]], introduced in 1975. The term "microcomputer" has practically become an [[anachronism]] as it has fallen into disuse.<ref>https://books.google.com/ngrams/graph?content=Microcomputer&year_start=1800&year_end=2019&corpus=26&smoothing=3&direct_url=t1%3B%2CMicrocomputer%3B%2Cc0 {{Webarchive|url=https://web.archive.org/web/20221023212903/https://books.google.com/ngrams/graph?content=Microcomputer&year_start=1800&year_end=2019&corpus=26&smoothing=3&direct_url=t1%3B,Microcomputer%3B,c0 |date=2022-10-23 }} {{bare URL inline|date=April 2023}}</ref>
These computers include:
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===Minicomputers (mid-range computers)===
[[Minicomputer]]s (colloquially, minis) are a class of multi-user [[computer]]s that lie in the middle range of the computing spectrum, in between the smallest [[mainframe computer]]s and the largest single-user systems ([[microcomputer]]s or [[personal computers]]). The term [[superminicomputer|supermini computer]] or simply supermini was used to distinguish more powerful minicomputers that approached mainframes in capability. Superminis (such as the [[Digital Equipment Corporation|DEC]] [[VAX]] or [[Data General Eclipse MV/8000]]) were usually [[32-bit]] at a time when most minicomputers (such as the [[PDP-11]] or [[Data General Eclipse]] or [[IBM Series/1]]) were [[16-bit]]. These traditional minicomputers in the last few decades of the 20th century, found in small to medium-sized businesses, laboratories and embedded in (for example) hospital [[CAT scanner]]s, often would be [[19-inch rack|rack-mounted]] and connect to one or more [[Computer terminals|terminals]] or [[punched tape|tape]]/[[punched card|card]] readers, like mainframes and unlike most personal computers, but require less space and electrical power than a typical mainframe. This term has fallen into disuse.<ref>https://books.google.com/ngrams/graph?content=Minicomputer&year_start=1800&year_end=2019&corpus=26&smoothing=3&direct_url=t1%3B%2CMinicomputer%3B%2Cc0 {{Webarchive|url=https://web.archive.org/web/20221023212546/https://books.google.com/ngrams/graph?content=Minicomputer&year_start=1800&year_end=2019&corpus=26&smoothing=3&direct_url=t1%3B,Minicomputer%3B,c0 |date=2022-10-23 }} {{bare URL inline|date=April 2023}}</ref>
===Mainframe computers===
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