Quiz 17.09

Question 1

1st step 
Stage:
Component:
Unit:
Function:

Answer 1

Stage: Fetch
Component: PC ( program counter)
Unit: control unit
Function: holds address of next instruction

Question 2

2nd step
Stage: 
Component:
Unit:
Function:

Answer 2

Stage: Fetch
Component: MAR ( memory address register)
Unit: Memory Unit
Function: Gets address from PC and sends signal with address to Primary Storage

Question 3

6th step
Stage: 
Component:
Unit:
Function:

Answer 3

Stage: Execute
Component: ALU(arithmetic Logic Unit)
Unit: Processor
Function: - Execute instructions given by CIA
- Send signals to output or ask for new data by sending address to MAR

Question 4

5th step 
Stage: 
Component:
Unit:
Function:

Answer 4

Stage: Decode
Component: Current instruction register(CIR)
Unit: Control Unit
Function: - Decode instructions into a firmst the ALU can understand
- Send instructions to the ALU

Question 5

4th step
Stage: 
Component:
Unit:
Function:

Answer 5

Stage: Fetch
Component: MOR(Memory Data Register) 
Unit: memory unit
Function: - gets instruction from RAM
- sends instruction to CIR in control unit

Question 6

3rd step 
Stage: 
Component:
Unit:
Function:

Answer 6

Stage: Fetch
Component:Primary Storage(RAM)
Unit: -
Function: - gets address of instruction location from MAR
-goes to location in RAM using address
- Sends instruction(data) from that location to MDR