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Warning: include() [function.include]: URL file-access is disabled in the server configuration in /home/softwa19/public_html/Personal_computer/Minicomputer.html on line 153 Warning: include(http://www.softwaredealz.com/software/468ad.html) [function.include]: failed to open stream: no suitable wrapper could be found in /home/softwa19/public_html/Personal_computer/Minicomputer.html on line 153 Warning: include() [function.include]: Failed opening 'http://www.softwaredealz.com/software/468ad.html' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php:/usr/local/php4') in /home/softwa19/public_html/Personal_computer/Minicomputer.html on line 153 Minicomputer Minicomputers are a largely obsolete class of multi-user computers which made up 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) The term evolved in the 1960s to describe the "small" Third Generation computers that became possible with the use of the newly invented integrated circuit technology. They usually took up one or a few cabinets, compared with mainframes that would usually fill a room. The first successful minicomputer was Digital Equipment Corporation's PDP-8, that cost from $16,000 when launched in 1964. As microcomputers developed in the 1970s and 80s, minicomputers filled the mid-range area between low powered microcomputers and high capacity mainframes. At the time microcomputers were single-user, relatively simple machines running simple program-launcher operating systems like CP/M or MS-DOS, while minis were much more powerful systems that ran full multi-user, multitasking operating systems like VMS and Unix. The classical mini was a 16-bit computer, while the emerging higher performance 32-bit minis were often referred to as superminis. The decline of the Minicomputer Today at the turn of the millenium few minicomputers are still in use, having been overtaken by Fourth Generation computers built using a more robust version of the microprocessor technology that is used in personal computers. These are referred to as "servers", taking the name from the server software that they run (typically file server and back-end database software, including web server software). The decline of the minis happened due to the lower cost of microprocessor based hardware, the emergence of inexpensive and easily deployable local area network systems, and the desire of end-users to be less reliant on inflexible minicomputer manufacturers and IT departments / "data centers" – with the result that minicomputers and dumb terminals were replaced by networked workstations and PCs in the latter half of the 1980s. During the 1990s the change from minicomputers to inexpensive PC networks was cemented by the development of several versions of Unix to run on the Intel x86 microprocessor architecture, including Solaris, Linux and FreeBSD/NetBSD. Also, the Microsoft Windows series of operating systems now includes server versions that support preemptive multitasking and other features required for servers, beginning with Windows NT. Significantly, Windows NT is largely based on the operating system DEC VMS, originally developed for the VAX minicomputer in the 1970s. Several pioneering computer companies first built minicomputers, such as DEC, Data General, and Hewlett-Packard (HP) (who now refers to its HP3000 minicomputers as "servers" rather than "minicomputers"). And although today's PCs and servers are clearly microcomputers physically, architecturally their CPUs and operating systems have evolved largely by integrating features from minicomputers. This content from Wikipedia is licensed under the GNU Free Documentation License. Warning: include() [function.include]: URL file-access is disabled in the server configuration in /home/softwa19/public_html/Personal_computer/Minicomputer.html on line 233 Warning: include(http://www.softwaredealz.com/software/bigbottom.html) [function.include]: failed to open stream: no suitable wrapper could be found in /home/softwa19/public_html/Personal_computer/Minicomputer.html on line 233 Warning: include() [function.include]: Failed opening 'http://www.softwaredealz.com/software/bigbottom.html' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php:/usr/local/php4') in /home/softwa19/public_html/Personal_computer/Minicomputer.html on line 233