Fetch Execute Cycle

Question 1

Computer function

Answer 1

Execution of a program (set of instructions)

Processor execute the instructions:
- Fetch (Read the instructions)
- Execute (Perform the instructions)

Program execution: Repeating fetch & execute

Program execution halt

Question 2

Instruction fetch & Execute - Hypothetical Machine

Answer 2

Example (3 cycles)
- 2+3 and save the result in the memory

-Single data register
-16-bit word memory
- 4 bit opcode