Computer Knowledge

Computer Hardware Devices

1,004 Questions

Computer Hardware Devices focuses on the physical components of a computer system, including input, output, and memory devices. It tests practical understanding of ports, displays, and peripheral technologies. This topic is common in the computer knowledge section of banking and SSC exams.

Input output devicesMonitor settingsComputer portsAssistive technologyHardware components

Computer Hardware Devices Questions

Multiple choice

Printer is an ____ device.

  1. input

  2. output

  3. control

  4. storage
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A printer takes digital information from the computer and produces a physical copy, which is an output operation.

Multiple choice

Control unit is used for ______ instruction.

  1. fetching

  2. executing

  3. both 1 and 2

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The control unit is responsible for the instruction cycle, which includes both fetching instructions from memory and coordinating their execution by other parts of the system.

Multiple choice

______ connects computer to the telephone.

  1. CPU

  2. Modem

  3. Keyboard

  4. Mouse
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A modem (modulator-demodulator) is the hardware component that allows a computer to communicate over telephone lines or cable networks.

Multiple choice

The ______ shows what you do on the computer.

  1. monitor

  2. printer

  3. scanner

  4. webcam
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The monitor is the primary output device that displays the graphical user interface and allows the user to see their actions on the computer.

Multiple choice

Which device can not be used for authentication?

  1. Voice recognition system

  2. Fingerprint sensor

  3. Retina scanner

  4. Flatbed scanner
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A flatbed scanner is an input device used to digitize documents or images. It is not used for biometric authentication, unlike voice, fingerprint, or retina scanners.

Multiple choice

Which is not a pointing device?

  1. Mouse

  2. Trackball

  3. MICR

  4. Joystick
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A mouse, trackball, and joystick are all pointing devices used to control a cursor. MICR (Magnetic Ink Character Recognition) is a character recognition technology used primarily in banking.

Multiple choice

Which technology is used for flat panel displays?

  1. Solid state

  2. RGB monitor

  3. VLSI

  4. Direct View Storage Tube
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Flat panel displays, such as LCDs and OLEDs, utilize solid-state technology to manipulate light and display images, replacing bulky cathode ray tubes.