Reduced Instruction Set Computers


A reduced instruction set only has simple instructions and a small number of them. This is in contrast to CISC which have a large number of complex instructions.

Advantages and Disadvantages compared to CISC

  • Advantages
    • RISC computers can be more efficient than CISC computers
    • RISC computers are easier to design
  • Disadvantages
    • RISC computers need more memory
    • Some important instructions can be msising.
    • Programs for RISC computers may be higher in size.
    • RISC computers are not as flexible as CISC computers.