Question Excerpt From Input Devices
The touchscreen is both an input and output deviceVirtual Reality devices can be used in pilot training simulationsThe barcode reader is a document reader and it has made producing bills faster and more reliable.The medium of the light pen is light emission from the monitor.All the following are input devices: keyboard, OCR, mouse, light pen.The trackball, the trackpoint and the touchpad are ideal for use on portable computersThe excellent precision rate of an OMR makes it sufficiently dependable as to be used to mark exam papers.
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