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COMPUTER HARDWARE

   The Major Components
       of a Computer
TERMINOLOGY
• Quick Glossary (part 1):
  – Hardware:
     • Physical components that make up the computer
  – Software:
     • Programs that ‘tell’ the computer what to do
The ‘5-box’ School

         CLASS SETS




          SUBJECT        EXAM
PUPILS
          LESSONS     CANDIDATES




          HOUSES
The ‘5-box’ Computer

              AUXILIARY
              STORAGE




 INPUT                    OUTPUT
             PROCESSOR
DEVICES                   DEVICES


CPU
               MAIN
Central       MEMORY
Processing
Unit
TERMINOLOGY
• Quick Glossary (part 2):
  – Mini Computers:
     • Multi-user. Hundreds of workstations
  – Mainframe Computers:
     • Multi everything!. Thousands of terminals,
       hundreds of disk-drives etc.
       Geographically diverse
  – Supercomputers:
     • !!! Look on the Web
CPU

Program
           CIR
Counter

          PROCESSOR



                 MAR     MDR




                        MAIN
                       MEMORY

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Section 01 hardware

  • 1. COMPUTER HARDWARE The Major Components of a Computer
  • 2. TERMINOLOGY • Quick Glossary (part 1): – Hardware: • Physical components that make up the computer – Software: • Programs that ‘tell’ the computer what to do
  • 3. The ‘5-box’ School CLASS SETS SUBJECT EXAM PUPILS LESSONS CANDIDATES HOUSES
  • 4. The ‘5-box’ Computer AUXILIARY STORAGE INPUT OUTPUT PROCESSOR DEVICES DEVICES CPU MAIN Central MEMORY Processing Unit
  • 5. TERMINOLOGY • Quick Glossary (part 2): – Mini Computers: • Multi-user. Hundreds of workstations – Mainframe Computers: • Multi everything!. Thousands of terminals, hundreds of disk-drives etc. Geographically diverse – Supercomputers: • !!! Look on the Web
  • 6. CPU Program CIR Counter PROCESSOR MAR MDR MAIN MEMORY