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

Mouse

  1. Another name for the keyboard.

  2. A big scary animal.

  3. The name of Mrs. Winter's pet.

  4. A hand-operated pointer device used for computer input.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A mouse is a hand-held pointing device that detects two-dimensional motion relative to a surface, allowing the user to control the cursor on the screen.

Multiple choice

Laptop

  1. Portable computers with a screen, keyboard and mouse device.

  2. Where grandkids sit when with a grandparent.

  3. The top of my desk.

  4. The top of a computer.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A laptop is a portable personal computer that integrates a display, keyboard, and pointing device into a single unit, making it easy to move and use in different locations.

Multiple choice

Monitor

  1. Also referred to as "computer screen" or "display.

  2. The teacher in the room.

  3. Your computer mouse.

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

A monitor is the physical output device that displays the visual interface of a computer. It is synonymous with screen or display.

Multiple choice

Which computer type has the best mobility?

  1. Desktop

  2. Laptop

  3. PDA/smart phone

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

A PDA or smartphone is designed for maximum portability and mobility compared to laptops, netbooks, or desktops. These devices fit in a pocket and are intended for constant movement.

Multiple choice

Which of the following is NOT an input device?

  1. mouse

  2. speakers

  3. keyboard

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

Speakers are output devices because they translate digital signals into sound for the user. Mice, keyboards, and scanners are input devices used to send data to the computer.

Multiple choice

LCD (Display)

  1. Liquid Crystal Display

  2. Liquid Connection Display

  3. LED Crystal Display

  4. Liquid Crystal Digitization
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

LCD stands for Liquid Crystal Display. It is a flat-panel display technology that uses the light-modulating properties of liquid crystals.

Multiple choice

TFT (Displays)

  1. Thick Film Transistor

  2. Thick Film Television

  3. Thin Film Transistor

  4. Thin Film Television
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

TFT stands for Thin Film Transistor, a type of field-effect transistor used in liquid crystal displays (LCDs) to improve image quality and response time.

Multiple choice

VGA (Display)

  1. Visual Graphics Application

  2. Video Graphics Application

  3. Visual Graphics Array

  4. Video Graphics Array
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

VGA stands for Video Graphics Array, a legacy display interface standard introduced by IBM in 1987.

Multiple choice

Which example of modern technology was influenced by the binary system of the ancient Indians?

  1. cars

  2. computers

  3. telescopes

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

The binary system, which represents numbers using only two states (0 and 1), was conceptualized in ancient India by scholars like Pingala. This mathematical foundation is the core language used by modern computers to process and store data. Other electronic and mechanical devices do not rely on binary logic in the same fundamental way.

Multiple choice

Optical Character Recognition (OCR)

  1. input

  2. output
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Optical Character Recognition (OCR) is an input technology because it reads printed or handwritten text from physical documents and converts it into digital data that the computer can process.

Multiple choice

multi-touch

  1. input

  2. output
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Multi-touch technology (like that on touchscreens) acts as an input method because it detects user gestures and finger contacts to send commands to the device.

Multiple choice

Webcam

  1. input

  2. output
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A webcam is an input device because it captures real-time video and images from the physical environment and sends them into the computer.

Multiple choice

Magnetic Ink Character Recognition (MICR)

  1. input

  2. output
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Magnetic Ink Character Recognition (MICR) is used to read special magnetic ink characters, such as those printed on the bottom of bank checks. Because it reads external data into the computer, it is classified as an input technology.