Architecture of the CPU - Paper 1 Flashcards
1
Q
What is the purpose of the CPU?
A
To process data and instructions.
To control the rest of the computer system.
2
Q
Explain the steps of the fetch-execute cycle.
A
3
Q
What is the function of the ALU?
A
To perform numerical calculations and logical operations.
4
Q
What is the function of the CU?
A
- Fetch, decode and execute instructions.
- Control hardware.
- Move data around the computer system.
5
Q
What is the function of the cache?
A
6
Q
Explain the different types of cache.
A
L1 cache is extremely fast, but very small.
L2 cache is larger, but also slower.
7
Q
What is the function of the registers?
A
8
Q
Name 4 registers in Von Neumann architecture.
A
- MDR - Memory Data Register
- MAR - Memory Address Register
- Program counter
- Accumulator
9
Q
What is the function of the MDR?
A
10
Q
What is the function of the MAR?
A
11
Q
What is the function of the program counter?
A
12
Q
What is the function of the accumulator?
A
