Input and Output Devices Question and Answers | Basic Computer Knowledge

16.

Which is the best position for operating the mouse?

   A.) Tail away form the user
   B.) Tail towards the user
   C.) Tail facing the right
   D.) Tail facing the left

Answer: Option 'B'

Tail towards the user

  • Hardware

    * Computer hardware is what you can physically touch includes the computer case, monitor, keyboard, and mouse.
    * It also includes all the parts inside the computer case, such as the hard disk drive, motherboard, video card, and many others.

    Input Devices

    * In computing, an input device is a peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system.
    * It will control devices such as a computer or information appliance.
    Examples: keyboards, mice, scanners, digital cameras and joysticks.

    Keyboard

    * A Keyboard is the most fundamental input device for any computer system.
    * It helps to enter data in the computer

    Mouse

    * A mouse is used to input data by sending a signal to the computer, based on hovering the cursor and selecting with the left mouse button.
    * The left mouse acts as an

17.

The pattern of printed lines on most products are called

   A.) prices
   B.) OCR
   C.) scanners
   D.) bar code

Answer: Option 'D'

bar code

  • 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.

18.

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

19.

The ________ may also be called the screen or monitor.

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

Answer: Option 'D'

display

20.

External devices such as printers, keyboards and modems are known as

   A.) add on devices
   B.) PC expansion slot add-ons
   C.) peripherals
   D.) special buys

Answer: Option 'C'

peripherals

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