• Output Devices
  • Central Processing Unit
  • Data Storage Devices
  • Data Storage Devices (cont’d)
  • Basic Computer Hardware and Software




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    Basic Computer Hardware and Software

    Basic Computer Hardware and Software.

    V103.01

    Material obtained from summer workshop in Guildford County

    Input Devices

      • Input Devices: devices that input information into the computer such as a keyboard, mouse, scanner, and digital camera.

    Output Devices

      • Output: devices that output information from the computer such as a printer and monitor.

    Hardware and Software

    • Computer Hardware would include all the parts of a computer.
    • Computer Software includes the programs that are installed.. Or the instructions for completing tasks.

    Central Processing Unit

      • CPU (Central Processing Unit) also called the Microprocessor or “The Brain” of the Computer.
      • Processor speed: The speed at which a microprocessor executes instructions. This is usually measured in megahertz (MHz).
      • Brands of Processors include:
        • Pentium
        • Celeron
        • MAC
        • AMD
        • Cyrix

    Central Processing Unit

      • Computer chip: also called the microprocessor may contain an entire processing unit.
      • Computer chips contain millions of transistors. They are small pieces of semi-conducting material (silicon).
      • An integrated circuit is embedded in the silicon. Computers are made of many chips on a circuit board.

    Data Storage Devices

      • The hard-drive is a mechanical storage device typically located internally.
        • Fast recording and recovery of data
        • Large storage capacity
        • Magnetic
        • Primary storage device for data and programs
        • Speed is measured in R.P.M.’s (Revolutions per minute)

    Data Storage Devices (cont’d)

      • CD-ROM (compact disk read only memory)
        • An optical device read by a diode laser

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    Basic Computer Hardware and Software

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