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Input and output

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Transcript

  • 1. Input and Output
    Chapter 4 technology
  • 2. What is Input?
    Input devices are any of the various devices used to enter, or INPUT, information into a computer for storage or processing.
    These devices are usually plugged into the front or back of the tower through the use of UBS ports.
  • 3. Various Input Devices
    There are many different types of input devices.
    There are several very important devices that are used with a computer:
    Keyboard
    Pointing devices – mouse, trackball, touchpad, touch screen and pen inputs.
  • 4. USB Ports
    A USB port, or Universal Serial Bus port, is a standard cable connection interface on personal computers and commercial electronics. They allow stand-alone electronic devices to be connected to a computer or to each other.
    Before USB ports, computers used serial ports and parallel ports to connect devices to a computer. Zip drives usually used the parallel ports as did printers which would limit the use of both.
  • 5. USB Ports
    The goal of the USB port is to end all of the confusion for input ports. The USB port gives us a standardized, easy-to-use way to connect 127 different devices!
    Some devices that use USB ports are: printers, scanners, joysticks, mice, keyboards, digital cameras, webcams, modems, speakers, and storage devices.
    Besides connecting devices, USB ports can also supply electrical power to devices.
  • 6. What is Output?
    Output devices are computer components that are capable of conveying, or OUTPUTTING, information from the computer to the user.
    Output is basically anything that comes out of a computer. This can include data, texts, pictures, videos, or sound.
  • 7. Various Output Devices
    http://www.youtube.com/watch?v=Eu2-VKPqLQI
  • 8. Output or Input?!
    Careful, this is a tricky one.