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System unit


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System unit

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