CISC meaning in Information Technology ?

Answer:

What is Complex Instruction Set Computer mean?

A complex instruction set computer (CISC ) is a computer in which single instructions can execute several low-level operations (such as a load from memory, an arithmetic operation, and a memory store) or are capable of multi-step operations or addressing modes within single instructions. The term was retroactively coined in contrast to reduced instruction set computer (RISC) and has therefore become something of an umbrella term for everything that is not RISC, where the typical differentiating characteristic is that most RISC designs use uniform instruction length for almost all instructions, and employ strictly separate load and store instructions.

Examples of CISC architectures include complex mainframe computers to simplistic microcontrollers where memory load and store operations are not separated from arithmetic instructions. Specific instruction set architectures that have been retroactively labeled CISC are System/360 through z/Architecture, the PDP-11 and VAX architectures, and many others. Well known microprocessors and microcontrollers that have also been labeled CISC in many academic publications include the Motorola 6800, 6809 and 68000-families; the Intel 8080, iAPX432 and x86-family; the Zilog Z80, Z8 and Z8000-families; the National Semiconductor 32016 and NS320xx-line; the MOS Technology 6502-family; the Intel 8051-family; and others.

Some designs have been regarded as borderline cases by some writers. For instance, the Microchip Technology PIC has been labeled RISC in some circles and CISC in others. The 6502 and 6809 have both been described as RISC-like, although they have complex addressing modes as well as arithmetic instructions that operate on memory, contrary to the RISC principles.

reference

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Continuous Inventory of Stand Conditions	Academic & Science
Computer and Information SCiences	Academic & Science
Centre for Innovation and Structural Change	Academic & Science
Campus Information Security Committee	Academic & Science
Creative Internet Solutions Consortium	Business
Construction Industry Safety Coalition	Business
Colorado Investment Services Coalition	Business
Career Internship Services Center	Business
Career and Internship Services Center	Business
Chongqing Iron and Steel Company	Business
Continental Information Systems Corporation	Business
Computer Information Storage Center	Business
Chicago Interactive Social Club	Business
Canadian Institute of Steel Construction	Business
Creative Industry Skills Council	Business
Curriculum and Instruction Steering Committee	Community
Caltech International Spouses Club	Community
Cook Inlet Soccer Club	Community
Combat Identification Systems Conference	Community
Catholic Independent Schools Conference	Community
CRTC Interconnection Steering Committee	Computer and Networking
Complete Instruction Set Computer	Computing
Complex Instructions Standard Computing	Computing
Complex Instruction Set Computers	Computing
Computer Instruction Set Compliment	Computing
Cisco Certification	Computing
Cyber Incident Sharing Center	Computing
Cyber and Information Security Consortium	Computing
Complex Instruction Set Computing	Computing
Complex Insruction Set Computers	General
Colorado Information Sharing Consortium	General
Chinese Information and Service Center	Governmental
CUNY Institute	Governmental
CUNY Institute for Sustainable Cities	Governmental
Clemson Institute for the Study of Capitalism	Governmental
COAG Industry and Skills Council	Governmental
Connecticut Industrial Ski Council	Governmental
Criminal Intelligence Service Canada	Governmental
Complex Instruction Set Computer	Information Technology
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Canadian Indonesian Social Club	Regional
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