Central Processing Unit and Cooling Systems May 2016 | Page 18

Extra activity I - Central Processing Unit ( CPU ) Overview
Description
This activity is designed to give a basic understanding of the workings of a computer .
For this activity we define a computer as being comprised of three components : CPU - Control Unit & Arithmetic Logical Unit Memory
Display ( acting as the output ) You are given a simple computer program to run ( Program1 , Program2 ), this is the input to the system . The “ CPU ” needs to fetch instructions and data from memory and execute the instructions ( CU ). It also needs to perform mathematical and logical functions ( ALU ) and tell the “ Display ” what to do . The “ Display ” need to hide what they are drawing , only once the program is completed , can the result be shown .
Setup
Assign your role .
CPU ( working with the program counter sheet ) will request instructions and data from memory , as required . These parts will also process any necessary calculations , writing results back to memory and instructing the display how to plot the data .