Monday, 8 April 2013

Difference's Between Risc and Cisc

Difference's   Between Reduced instruction Set computer(RISC) and Complex Instruction Set Computer(CISC) are follows

                              RISC
                      CISC
RISC stands for Reduced Instruction Set Computer.
CISC - for Complex Instruction Set Computer.
Fewer register.
Many register.
Less complex microcode.
Complex microcode.
RISC systems shorten execution time, by reducing the clock
cycles per instruction (i.e. simple instructions take less time
to interpret).
CISC systems shorten execution time, by reducing the
number of instructions per program.

Mainly used for real time applications.
Mainly used in normal PC’s, Workstations and servers .
Examples of RISC Processors: Atmel AVR, PIC, ARM.

Examples of CISC Processors: Intel x86.
Instruction pipe lining can be implemented easily.
  Instruction pipe lining can not be implemented easily.


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