Input and Output Devices Question and Answers | Basic Computer Knowledge

11.

The ________ may also be called the screen or monitor.

   A.) printer
   B.) scanner
   C.) hard disk
   D.) display

Answer: Option 'D'

display

  • Important - Bits

    * Enter key is an alternative to press OK button.
    * Shift key is used in combination with other keys. So this is also called

    Combination key.

    * Caps lock and num lock keys are called as 'toggle keys' because when pressed, they toggle or change their status from one state to another.
    * Numeric keypad is used only, when the num lock key is in active state.

12.

Which of the following produces high-quality output?

   A.) Impact printer
   B.) Non-impact printer
   C.) Plotter
   D.) Both '1' and '2'

Answer: Option 'B'

Non-impact printer

13.

A hard copy would prepared on a

   A.) line printer
   B.) dot matrix printer
   C.) plotter
   D.) All of these

Answer: Option 'D'

All of these

14.

The CRT is ________ in shape.

   A.) circular
   B.) rectangular
   C.) eclipse
   D.) conical

Answer: Option 'B'

rectangular

  • MIDI Devices

    * MIDI (Musical Instrument Digital Interface) is a system design to transmit information between electronic musical instruments.

    Trackball

    * The trackball is sort of like an upside-down mouse, with the ball located on top.
    * You use your fingers to roll the trackball, and internal rollers (similar to what

15.

The OCR recognises the _______ of the characters with the help of light source.

   A.) size
   B.) shape
   C.) colour
   D.) used ink

Answer: Option 'B'

shape

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