Question

Compare RISC and SISC architecture in brief. Also discuss the advantage and disadvantages and disadvantages of each

Answer 1

Answer: The main difference between RISC and CISC are the following:

1) The instruction set size is small in

RISC and instructions set size is larger in CISC.

2) Only 32 bits format is used by RISC while from 16-64 bits format is used by CISC.

Advantages of RISC:

1) less cost

2) Having less chip size

3) design is easy as compared to CISC.

Advantages of CISC:

1) less expensive than hard wiring

2) easy to add new commands in the chip.

Disadvantages of CISC :

1) performance of machine are reduced

2) design is very complex

Disadvantages of RISC :

1) requires large cache memory