Computer Knowledge

Computer Hardware Devices

893 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

A……………….converts text or images on paper into an electronic format that the computer can display, print and store.

  1. disk formatter

  2. modem

  3. scanner

  4. graphic storage device
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A scanner is a device that optically scans images, printed text, handwriting, or an object and converts it to a digital image. Unlike a modem (for internet connectivity) or disk formatter (for disk preparation), a scanner's specific purpose is digitizing physical documents and images for computer use.

Multiple choice

Which of the following is not an input device?

  1. Digitized camera

  2. Spaceball

  3. joystick

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

LCD (Liquid Crystal Display) is an output device that displays visual information. A digitized camera, spaceball (input device), and joystick are all input devices that send data to the computer.

Multiple choice

The blinking symbol on the computer screen is called the

  1. Mouse

  2. Logo

  3. Hand

  4. Palm

  5. Cursor
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The cursor is the blinking indicator that shows your current position on the computer screen. It indicates where text will appear when you type or where an action will take place when you click. Mouse, Logo, Hand, and Palm are not cursor types.

Multiple choice

A keyboard is this kind of device

  1. black

  2. input

  3. output

  4. word Processing

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A keyboard is an input device because it sends data and commands TO the computer system. Input devices allow users to provide information and instructions to the computer, as opposed to output devices which display or present information FROM the computer.

Multiple choice

Which of the following elements is unique to a Smart Card?

  1. Magnetic stripe

  2. Signature

  3. Microchip

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

Smart cards are distinguished from magnetic stripe cards by their embedded microchip, which provides enhanced security and processing capabilities. Magnetic stripes, signatures, and photographs can all be found on traditional cards. The microchip is the unique element that enables smart cards to store and process data securely.

Multiple choice

Card reader is an _____ device while card is an _________ device

  1. input, output

  2. input, input

  3. output, output

  4. output, input
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A card reader is an input device that reads data from punched cards. The card itself is the storage medium that holds the data and functions as output when created by a keypunch machine. In conventional computer architecture terminology, readers are input devices.

Multiple choice

The most common input device used today is ..........

  1. IC chip

  2. VDU

  3. Motherboard

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

The keyboard is the most widely used input device for entering text, commands, and data into computers. While other devices like mice and touchscreens are common, the keyboard remains essential for most computing tasks.