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System unit
 

System unit

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    System unit System unit Presentation Transcript

    • SYSTEM UNIT
      Prepared by: masnizamustafa
    • SYSTEM UNIT
      What is system unit?
      Box-like case that contains computer’s electronic components
    • SYSTEM UNIT
      Inside view of system unit
      CD-ROM
      Power supply
      Case
      Powercables
      Hard disk drive
      Case fan
      CPU & fan
      Floopy drive
      Input/Output
      Data cables
      RAM
      Motherboard
      Battery
    • SYSTEM UNIT
      Front layer of a system unit
      DVD-ROM drive
      CD-ROM drive
      Zip drive
      Empty drive bay
      Floopy disk drive
      Power button
      /
      Reset button
    • SYSTEM UNIT
      Input/Output port (I/O port)
    • SYSTEM UNIT
      Functions of the main components of a system unit
      1. Power button: To start on computer
      2. Motherboard: Main circuit board of the system unit, which has some
      electronic components
      3. Power Supply: Supplying power to the computer
      4. DVD-ROM drive: A device that reads DVD-ROM, also can read audio CDs,
      CDROMSs,CD-Rs and CD-RWs.
      5. CD-ROM drive: A device that reads audio CDs, CD-ROMs, CD-Rs and CD-RWs
      6. Floppy drive: A device that reads from and writes on a floppy disk
      7. Hard disk drive: Type of storage device that contains one or more inflexible,
      circular platters that store data, instructions and
      information.
    • exercise
      Look at the diagram carefully and match them to the name of the ports in the table given using numbers.
    • exercise
      Mark T for True and F for False
      1. The processor (CPU) interprets and carries out the basic instructions that
      operate a computer. ( )
      2. Computers can use only one processor at a time. ( )
      3. ROM is the main circuit board of the system unit. ( )
      4. Expansion slot is a socket on the motherboard that can hold an adapter card.( )
      5. RAM is non-volatile. ( )
      6. The most important chip on the main circuit board is the microprocessor
      chip. ( )
      7. I/O port is the point at which a peripheral attaches to a system unit so that the
      peripheral can send data to or receive information from the computer. ( )
      8. Reset button is to start on computer. ( )
      9. A device that reads from and writes on a floppy disk is called hard disk drives. ( )
      10. Power supply convert standard electrical power into the form that computer
      can use. ( )