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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. 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.

  4. Minicomputer - Wikipedia

    en.wikipedia.org/wiki/Minicomputer

    A minicomputer, or colloquially mini, is a type of smaller general-purpose computer developed in the mid-1960s [1] [2] and sold at a much lower price than mainframe [3] and mid-size computers from IBM and its direct competitors.

  5. Ken Olsen Remembered: Lessons of a Great American Entrepreneur

    www.aol.com/news/2011-02-08-ken-olsen-remembered...

    The PC Did to DEC What DEC Did to Mainframes DEC's invention of the minicomputer seriously disrupted International Business Machines' dominant position in the mainframe computer business. Because ...

  6. Classes of computers - Wikipedia

    en.wikipedia.org/wiki/Classes_of_computers

    The term supermini computer or simply supermini was used to distinguish more powerful minicomputers that approached mainframes in capability. Superminis (such as the 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 .

  7. 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 ...

  8. HP 3000 - Wikipedia

    en.wikipedia.org/wiki/HP_3000

    HP 3000 Series III. The HP 3000 series [1] is a family of 16-bit and 32-bit minicomputers from Hewlett-Packard. [2] It was designed to be the first minicomputer with full support for time-sharing in the hardware and the operating system, features that had mostly been limited to mainframes, or retrofitted to existing systems like Digital's PDP-11, on which Unix was implemented.

  9. Prime Computer - Wikipedia

    en.wikipedia.org/wiki/Prime_Computer

    Prime Computer, Inc. was a Natick, Massachusetts-based producer of minicomputers [1] from 1972 until 1992. With the advent of PCs and the decline of the minicomputer industry, Prime was forced out of the market in the early 1990s, and by the end of 2010 the trademarks for both PRIME [2] and PRIMOS [3] no longer existed.

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