1.1.2 Types of Processor

Question 1

What is CISC?

Answer 1

Complex Instruction Set Computer

• Large instruction set
• One cycle

Question 2

Benefits of CISC?

Answer 2

1. Memory required is reduced due to size of code
2. Less RAM needed
3. Compliers are easier to design

Question 3

Drawbacks of CISC?

Answer 3

1. Requires more transistors

2. Requires more power than RISC

Question 4

What is RISC?

Answer 4

Reduced Instruction Set Computer

Question 5

Benefits of RISC?

Answer 5

1. Less transistors than CISC
2. Smaller physical size
3. Can make use of Pipelining
4. One instruction per clock cycle
5. Simplified hardware

Question 6

Drawbacks of CISC?

Answer 6

1. Less Instructions than CISC

2. Software is more complicated as the hardware is simplified