Input and Output Devices Question and Answers | Basic Computer Knowledge

1.

An example of peripheral equipment is

   A.) CPU
   B.) printer
   C.) ALU
   D.) spreadsheet

Answer: Option 'B'

printer

2.

Which of the following groups consists of only input devices?

   A.) Mouse, Keyboard, Monitor
   B.) Mouse, Keyboard, Printer
   C.) Mouse, Keyboard, Plotter
   D.) Mouse, Keyboard, Scanner

Answer: Option 'D'

Mouse, Keyboard, Scanner

3.

What are the units used to count the speed of a

   A.) CPM
   B.) DPI
   C.) PPM
   D.) BIT

Answer: Option 'B'

DPI

  • Important - Bits

      * Mouse was invented by Dauglas Engelbert at Stanford Research Centre in 1963.
      * Optical mouse was introduces by Microsoft in 1999. It uses a light beam to detect the movement.
      * A joystick allows movements in all directions (360)
      * Scanner stores images in both gray scale and colour mode.
      * Drag and drop refers to the action of clicking and holding down the mouse button while moving the mouse and realing it.
      * OCR technology is being developed for greater accurate recognition and is known as Intelligent Character Recognition (ICR).

4.

What type of device is a digital camera?

   A.) Input
   B.) Output
   C.) Software
   D.) Storage

Answer: Option 'A'

Input

5.

A joystick is primarily used to/for

   A.) control sound on the screen
   B.) computer gaming
   C.) enter text
   D.) draw pictures

Answer: Option 'B'

computer gaming

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