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Input DevicesWe need a way to enter (input) our data to the computer. Devices that can enter data to computers are called input devices . Examples of input devices (see Fig. m010111.1) include keyboards, Mouse, touch pads, light pens, joy sticks ...etc.
Output DevicesAfter we calculate the average height, we will need to get the result and present it to the user in a convenient form. An output device is used to output the data. Examples of output devices are monitors, printers ...etc. Peripheral devices
include input and output devices.
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