RISC & CISC

Question 1

Explain RISC instruction sets in terms of complexity, cost, power and clock speed

Answer 1

1) RISC has fewer instruction than CISC therefore it’s slower for carrying out complex commands but it’s quick for simple basic tasks.
2) Risc is genreally cheaper to mass produce because less circuitry is required for the instruction set
3) RISC CPU’s are designed to use less power and run without dedicated cooling systems so that they can be used in smartphones.
4) Risc CPU’s run at lower clock speeds than CISC CPU’s. They can also perform simpler taskes more quickly than cisc and aren’t genreally used to carry out complex instructions

Question 2

Explain RISC instruction sets in terms of complexity

Answer 2

RISC has fewer instruction than CISC therefore it’s slower for carrying out complex commands but it’s quick for simple basic tasks.

Question 3

Explain RISC instruction sets in terms of cost

Answer 3

Risc is genreally cheaper to mass produce because less circuitry is required for the instruction set

Question 4

Explain RISC instruction sets in terms of power

Answer 4

RISC CPU’s are designed to use less power and run without dedicated cooling systems so that they can be used in smartphones.

Question 5

Explain RISC instruction sets in terms of clock speed

Answer 5

Risc CPU’s run at lower clock speeds than CISC CPU’s. They can also perform simpler taskes more quickly than cisc and aren’t genreally used to carry out complex instructions

Question 6

Explain CISC instruction sets in terms of complexity, cost, power and clock speed

Answer 6

1) CISC has more complex instructions therefore it can perform complicated tasks
2) CISC CPU’s are generally more expensive because they require more circuitry to operate.
3) Because CISC CPUs require more circuitry this means that they generate more heat and may require a fan. CISC CPUs therefore are commonly used in desktop computers.
4) CISC CPUs run at higher clock speeds than RISC CPUs. They can perform complex tasks more quickly than RISC

Question 7

Explain CISC instruction sets in terms of complexity

Answer 7

CISC has more complex instructions therefore it can perform complicated tasks

Question 8

Explain CISC instruction sets in terms of cost

Answer 8

CISC CPU’s are generally more expensive because they require more circuitry to operate.

Question 9

Explain CISC instruction sets in terms of power

Answer 9

Because CISC CPUs require more circuitry this means that they generate more heat and may require a fan, therefore they require more power. CISC CPUs therefore are commonly used in desktop computers.

Question 10

Explain CISC instruction sets in terms of clock speed

Answer 10

CISC CPUs run at higher clock speeds than RISC CPUs. They can perform complex tasks more quickly than RISC