Input & Output Devices MCQs with Answers

What does OCR stand for in computer science terminology?

• A.Online Character Recognition
• B.Optical Code Reader
• C.Optical Character Rendering
• D.Optical Character Recognition

What is the primary function of input devices in a computer system?

• A.Put data into the computer
• B.Display processed results to the user
• C.Store data permanently for later retrieval
• D.Process data and perform calculations

Which device in the image is used to produce hard copies of digital documents?

• A.Scanner
• B.Printer
• C.Monitor
• D.Projector

Which type of user interface typically requires a mouse for navigation?

• A.Command-Line Interface (CLI)
• B.Menu-Driven Interface
• C.Graphical User Interface (GUI)
• D.Voice User Interface

Past Paper MCQ

What type of device is a computer mouse considered to be?

• A.Processing device
• B.Output device
• C.Storage device
• D.Input device

From which component does a cathode ray tube (CRT) receive its signal-power?

• A.Transformer
• B.Electronic Chip
• C.Power Supply Unit
• D.Capacitor Bank

Which device is used to input sound into the computer?

• A.Speaker
• B.Microphone
• C.Headphone
• D.Printer

What type of device is a Cathode Ray Tube commonly associated with?

• A.Scanner
• B.Printer
• C.Monitor
• D.Keyboard

Which technology is primarily used in security systems and criminal investigations for identifying individuals?

• A.OMR scanner
• B.Barcode scanner
• C.Finger print reader
• D.Magnetic stripe reader

What type of device is a scanner considered to be in computer systems?

• A.Input device
• B.Output device
• C.Storage device
• D.Processing device