Input & Output Devices MCQs with Answers

What is the main purpose of output devices in a computer system?

• A.To enter data into the computer
• B.To show results of processing
• C.To store data permanently
• D.To process instructions

What does LED stand for?

• A.Laser Emitting Diode
• B.Light Emitting Device
• C.Light Emitting Diode
• D.Light Energy Diode

What are the keys like Page Up, Page Down, Delete, Insert, and Arrow keys collectively known as?

• A.Function Keys
• B.Navigation Keys
• C.Modifier Keys
• D.Toggle Keys

Which component is responsible for transferring data between a computer and its external environment?

• A.Control Unit
• B.Arithmetic Logic Unit
• C.Input/Output
• D.Memory Unit

A joystick is classified as which type of computer device?

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

What are the small individual elements called that collectively form an image on a computer screen?

• A.Pixels
• B.Voxels
• C.Texels
• D.Fragments

What is the name of the wide key on a keyboard that has no marking on it?

• A.Enter Key
• B.Space Bar
• C.Shift Key
• D.Tab Key

Past Paper MCQ

The output quality of a printer is measured by what unit?

• A.Characters per second
• B.Pixels per centimeter
• C.Lines per minute
• D.Dots per inch

What does MICR stand for?

• A.Magnetic Input Character Reader
• B.Magnetic Ink Code Reader
• C.Machine Ink Character Recognition
• D.Magnetic Ink Character Recognition

Which device is commonly used to produce a hardcopy from a computer's softcopy?

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