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1. The CPU Reorder

Target Level
C
Running Total
0
0%
Attempt
1 of 3

Drag and drop the boxes into the correct order.



  • Instruction is copied into the MDR
  • Control unit decodes the instruction
  • Contents of the PC are incremented
  • Instruction travels along the data bus
  • Memory location addressed by the MAR is accessed
  • Contents of the PC are copied to the MAR
  • Instruction's address is transmitted along the address bus
  • Instruction is copied into the CIR

This is your 1st attempt! The marking algorithm gives more marks for getting the right order first time.

Pass Mark
70%