CISC

Noun

Meaning

(computer science) a kind of computer architecture that has a large number of instructions hard coded into the CPU chip

an agency of the Canadian government that unifies the intelligence units of Canadian law enforcement agencies

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Alpha, originally known as Alpha AXP, is a 64-bit reduced instruction set computing (RISC) instruction set developed by Digital Equipment Corporation (DEC), designed to replace their 32-bit VAX complex instruction set computer (CISC) instruction set. Source: Internet

At the time, most of the personal computer industry was shipping systems based on the Intel 80386 and 80486 chips, which had a CISC architecture, and development of the Pentium processor was well underway. Source: Internet

Computers with high code density often have complex instructions for procedure entry, parameterized returns, loops etc. (therefore retroactively named Complex Instruction Set Computers, CISC ). Source: Internet

CISC does not even need to have complex addressing modes; 32 or 64-bit RISC processors may well have more complex addressing modes than small 8-bit CISC processors. Source: Internet

CISC ISAs like x86-64 offer low register pressure despite the fact that they have fewer programmable registers. Source: Internet

Consisting of only 44,420 transistors (compared with averages of about 100,000 in newer CISC designs of the era) RISC-I had only 32 instructions, and yet completely outperformed any other single-chip design. Source: Internet

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