RISC and CISC Processors

cpu-risc-cisc
RISC and CISC are two computers architectures that are used by CPUs.
Complete this drag and drop activity to highlight the characteristics of RISC & CISC processors.

instructions
several
Complex
Reduced
Software
circuitry
1
Desktop
simpler
Embedded devices
Many
clock cycle

RISC Architecture

  • A RISC ( Instruction Set Computers) processor can only decode a small number of
  • A RISC processor has a design so is easier to design and manufacture.
  • A RISC processor processes one instruction per (= machine cycle).
  • In a RISC processor: 1 instruction = 1 FDE Cycle = Clock Cycle
  • Software is more complex to write with a RISC processor.
  • Typical Use: (e.g. Washing Machines, GPS SatNav, mobile phones etc…)

CISC Architecture

  • A CISC ( Instruction Set Computers) processor can decode a larger number of instructions.
  • A CISC processor has a complex design/.
  • A CISC processor processes one instruction using clock cycles (= machine cycles).
  • In a CISC processor: 1 instruction = 1 FDE Cycle = Clock Cycles
  • is easier to write with a CISC processor.
  • Typical Use: , Laptop

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Posted in Computer Science, Computing Concepts, Quiz

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