When I click the mouse on the WORD app, it sends a message to the CPU
WORD OPENS ON SCREEN!!!!!
click of mouse
The CPU then sends the instruction to the RAM until it is able to use it. Then the RAM sends it to the cache, a temporary storage inside the CPU, then it is sent to process in the ALU. After it has processed, the Control Unit sends the output, in this case telling the screen to display the WORD loading page.