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2. List of computer size categories - Wikipedia

   en.wikipedia.org/wiki/List_of_computer_size...

   One generation's "supercomputer" is the next generation's "mainframe", and a "PDA" does not have the same set of functions as a "laptop", but the list still has value, as it provides a ranked categorization of devices. It also ranks some more obscure computer sizes.

3. Minicomputer - Wikipedia

   en.wikipedia.org/wiki/Minicomputer

   A minicomputer, or colloquially mini, is a type of general-purpose computer mostly developed from the mid-1960s [1] [2], built significantly smaller and sold at a much lower price than mainframe [3] and mid-size computers from IBM and its direct competitors. By 21st century-standards however, a mini is an exceptionally large machine ...

4. VAX - Wikipedia

   en.wikipedia.org/wiki/VAX

   The MicroVAX was superseded by the VAX 4000, the VAX 8000 was superseded by the VAX 6000 in the late 1980s and the mainframe-class VAX 9000 was introduced. In the early 1990s, the fault-tolerant VAXft was introduced, as were the Alpha compatible VAX 7000/10000. A variant of various VAX-based systems were sold as the VAXserver.

5. History of computing hardware (1960s–present) - Wikipedia

   en.wikipedia.org/wiki/History_of_computing...

   In addition, minicomputers were more interactive than mainframes, and soon had their own operating systems. The minicomputer Xerox Alto (1973) was a landmark step in the development of personal computers, because of its graphical user interface, bit-mapped high-resolution screen, large internal and external memory storage, mouse, and special ...

6. List of computer system manufacturers - Wikipedia

   en.wikipedia.org/wiki/List_of_computer_system...

   Computer division merged with CII's minicomputer division to become Société européenne de mini-informatique et systèmes (SEMS) Tava Corporation — United States: 1983: 1984: Acquired by Replitech: Terak Corporation — United States: 1975: 1985: Acquired by Sanders Associates: TeleVideo — United States: 1975: 2011: Dissolution: Teleram ...

7. Mainframe computer - Wikipedia

   en.wikipedia.org/wiki/Mainframe_computer

   A mainframe computer, informally called a mainframe or big iron, [1] is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing.

8. Midrange computer - Wikipedia

   en.wikipedia.org/wiki/Midrange_computer

   Midrange computers, or midrange systems, were a class of computer systems that fell in between mainframe computers and microcomputers. [1] [failed verification]This class of machine emerged in the 1960s, with models from Digital Equipment Corporation (PDP lines), Data General (), and Hewlett-Packard (HP 2100 and HP 3000) widely used in science and research as well as for business - and ...

9. History of personal computers - Wikipedia

   en.wikipedia.org/wiki/History_of_personal_computers

   The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the 1970s. A personal computer is one intended for interactive individual use, as opposed to a mainframe computer where the end user's requests are filtered through operating staff, or a time-sharing system in which one large processor is shared by many individuals.