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Input device and its types easily
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Input device and its types easily
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Designing an Information System
470 Words1 Page
Recommended: Input device and its types easily
When designing an information system you first need to consider the
output. The output depends on the type of job. If a very basic job is
needed you would use a monitor and a printer. The basic input devices
are the mouse and the keyboard. Basic output devices are the monitor,
the speakers and the printer. I need to consider alternatives so that
I can get the best out of my system.
The purpose of an input device is to input data or information so it
can be converted into the system. Input devices must be fast and
accurate. The cost of the product must be reasonably cheap.
The main input devices in use today are:
Keyboard Web Camera Joy
Stick MICR
Mouse Scanner Digital
Camera
OCR/PMR Barcode Readers
Microphone
An optical wheel mouse is available to me and a QWERTY keyboard.
Keyboard
Keyboards are the oldest and most familiar type of input device. The
way a keyboard works is that each button that is being pressed closes
a switch. This releases a code which the computer converts to the
relevant character. The keyboard is called a QWERTY keyboard due to
the letters on the top right of it.
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