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RISC processor
RISC processor [ R educed I nstruction S et C omputer], computer arithmetic-logic unit that uses a minimal instruction set, emphasizing the instructions used most often and optimizing them for the fastest possible execution. Software for RISC processors must handle more operations than traditional CISC [ C omplex I nstruction S et C omputer] processors, but RISC processors have advantages in applications that benefit from faster instruction execution, such as engineering and graphics workstations and parallel-processing systems. They are also less costly to design, test, and manufacture. In the mid-1990s RISC processors began to be used in personal computers instead of the CISC processors that had been used since the introduction of the microprocessor .
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"RISC processor." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. "RISC processor." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1E1-RISCproc.html "RISC processor." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-RISCproc.html |
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RISC
RISC Acronym for reduced instruction set computer. A computer based on a processor or processors designed to execute a small number of simple register-based instructions extremely fast, preferably one instruction for every cycle of the system clock. (Hence RISC also stands for reduced instruction set complexity.) RISC processors employ pipelining and on-chip instruction and data cache memory among other techniques. Various RISC architectures have been developed by manufacturers, including Hewlett-Packard's HP-PA (precision architecture), ARM RISC processors from Advanced RISC Machines Ltd, Digital Equipment's Alpha AXP, Sun Microsystem's SPARC (scalable processor architecture), MIPS processors from MIPS Technologies Inc., and the PowerPC produced by a partnership between IBM, Apple, and Motorola.
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JOHN DAINTITH. "RISC." A Dictionary of Computing. 2004. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. JOHN DAINTITH. "RISC." A Dictionary of Computing. 2004. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O11-RISC.html JOHN DAINTITH. "RISC." A Dictionary of Computing. 2004. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O11-RISC.html |
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RISC
RISC (rɪsk) reduced-instruction-set computer
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Cite this article
FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "RISC." The Oxford Dictionary of Abbreviations. 1998. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>. FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "RISC." The Oxford Dictionary of Abbreviations. 1998. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O25-RISC.html FRAN ALEXANDER , PETER BLAIR , JOHN DAINTITH , ALICE GRANDISON , VALERIE ILLINGWORTH , ELIZABETH MARTIN , ANNE STIBBS , JUDY PEARSALL , and SARA TULLOCH. "RISC." The Oxford Dictionary of Abbreviations. 1998. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O25-RISC.html |
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