A touch screen functions as which type of computer device?

A touch screen is considered both an input and output device because it can display information to the user and also receive commands through touch. Therefore, Option C (Both Input and Output Device) is the correct answer.
As an output device,... Read More

1 BASIC COMPUTER MCQS

A touch screen functions as which type of computer device?

  • Input devices
  • Output devices
  • Both A & B
  • None of these
Correct Answer: C. Both A & B

Detailed Explanation

A touch screen is considered both an input and output device because it can display information to the user and also receive commands through touch. Therefore, Option C (Both Input and Output Device) is the correct answer.


As an output device, a touch screen displays information such as text, images, videos, menus, and application interfaces. The user can visually see the information presented on the screen just like with a conventional monitor.


As an input device, the touch screen detects the user's touch and converts it into commands or instructions. For example, tapping an application icon opens the application, while swiping can move through a webpage or list. This allows users to interact directly with the displayed content without requiring a separate mouse or keyboard for many tasks.


Touch screens are widely used in smartphones, tablets, ATMs, self-service kiosks, point-of-sale systems, information terminals, and modern computer systems. Their ability to both display information and accept user input makes them different from traditional monitors, which primarily function as output devices.


Key Points:



  • Touch Screen = Input + Output Device 

  • Output: Displays text, images, videos, and other information.

  • Input: Detects touch and converts it into commands.

  • Commonly used in smartphones, tablets, ATMs, and kiosks.

  • A traditional monitor is primarily an output device.

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