Input/Output Devices and Memory MCQs

What is the function of the input unit?

• Store data

• Process data

• Convert user data into machine-readable form

• Display output

Which of these is a human data entry device?

• Barcode Reader

• Mouse

• Scanner

• OCR

What kind of input device is the digitizing tablet?

• Text input

• Graphics input

• Sound input

• Optical input

Which key is not a function key on a keyboard?

• F5

• F10

• F15

• F1

The rubber ball inside a mechanical mouse is used to:

• Click

• Type

• Detect movement

• Store data

A trackball is mostly used in:

• Printers

• Projectors

• Laptops

• Monitors

A light pen works by detecting:

• Heat

• Pressure

• Light from the screen

• Sound

Which of the following is a source data entry device?

• Keyboard

• Mouse

• MICR

• Joystick

OCR is used to convert:

• Handwritten input to audio

• Text to graphics

• Scanned text to editable text

• Code to binary

Which device is used for drawing directly on the screen?

• Trackball

• Light pen

• Touchpad

• Microphone