Input and Output Devices Practice Question and Answer

Q:

Plotter is an output device that prints _______ etc. on hard copy.

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  • 1
    chart
    Correct
    Wrong
  • 2
    Graph
    Correct
    Wrong
  • 3
    drawing
    Correct
    Wrong
  • 4
    all of the above
    Correct
    Wrong
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Answer : 4. "all of the above"
Explanation :

A plotter is an output device that prints vector graphics on hard copy. Unlike printers, which are designed for raster graphics and text, plotters are specialized devices used to produce high-quality drawings, diagrams, and other vector-based illustrations. Plotters use pens or other drawing tools to create precise lines and shapes on paper, making them particularly useful for applications that require detailed and accurate graphical output, such as architectural and engineering designs.

Q:

________ is an output device that is used for TV Like displays the output on the screen and it is also called visual display unit.

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  • 1
    Printer
    Correct
    Wrong
  • 2
    monitor
    Correct
    Wrong
  • 3
    Plotter
    Correct
    Wrong
  • 4
    Projector
    Correct
    Wrong
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Answer : 2. "monitor"
Explanation :

An output device that is used for TV-like displays and shows the output on the screen is indeed called a monitor. It is also commonly referred to as a visual display unit (VDU). Monitors and VDUs are used to display visual information from computers and other electronic devices, allowing users to view text, images, videos, and other graphical content. They come in various types, including CRT (Cathode Ray Tube), LCD (Liquid Crystal Display), LED (Light Emitting Diode), and OLED (Organic Light Emitting Diode) monitors.

Q:

What are the monitors that display the output as an adjustment of RGB radiation?

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    monochrome monitor
    Correct
    Wrong
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    color monitor
    Correct
    Wrong
  • 3
    gray-scale monitor
    Correct
    Wrong
  • 4
    flat panel monitor
    Correct
    Wrong
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Answer : 2. "color monitor"
Explanation :

color monitor is a type of display that can adjust and display output by manipulating the Red, Green, and Blue (RGB) radiation. In a color monitor, pixels are made up of red, green, and blue sub-pixels, and by varying the intensity of these colors, a wide range of colors can be displayed on the screen. Adjusting the intensity of RGB radiation allows the monitor to display different colors and shades, providing a full spectrum of colors to the viewer. This technology is commonly used in computer monitors, television screens, and other displays to produce vibrant and accurate color representations.


Q:

Which is the fastest printer?

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  • 1
    Laser Printer
    Correct
    Wrong
  • 2
    Jet printer
    Correct
    Wrong
  • 3
    Thermal Printer
    Correct
    Wrong
  • 4
    Daisy wheel printer
    Correct
    Wrong
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Answer : 1. "Laser Printer"
Explanation :

Laser printers are generally known for their speed and efficiency, making them one of the fastest types of printers available for everyday office use. They use laser technology to print text and images, which allows for high-speed printing without compromising print quality. Laser printers are especially well-suited for printing large volumes of text documents quickly and are commonly used in office environments where fast and high-quality printing is required.


Q:

Joystick is a type of ______?

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  • 1
    Input device
    Correct
    Wrong
  • 2
    memory
    Correct
    Wrong
  • 3
    Output device
    Correct
    Wrong
  • 4
    Game
    Correct
    Wrong
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Answer : 1. "Input device"
Explanation :

1. The input device is the device that provides data and control signals to the computer.

2. Major examples of input devices -

- Keyboard, Mouse, Scanner, Joystick, Microphone, Magnetic Ink Character Recognition (MICR), Optical Character Reader (OCR), Touchpad, Touch Screen, Webcam.

Q:

An optical input device that scans and reads pencil pen marks on paper media?

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  • 1
    OMR
    Correct
    Wrong
  • 2
    Magnetic tape
    Correct
    Wrong
  • 3
    Punch card reader
    Correct
    Wrong
  • 4
    Optical scanner
    Correct
    Wrong
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Answer : 1. "OMR "
Explanation :

1. Optical Mark Reading (OMR) is a method of entering data into a computer system.

2. Optical mark readers read pencil or pen marks made in pre-determined positions on paper forms as answers to questions or tick list signs.

Q:

Joystick is mainly used for ________.

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  • 1
    to control the sound on the screen
    Correct
    Wrong
  • 2
    Computer gaming
    Correct
    Wrong
  • 3
    Text Enter
    Correct
    Wrong
  • 4
    print text
    Correct
    Wrong
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Answer : 2. "Computer gaming"
Explanation :

1. Joystick is mainly used for computer gaming.

2. What is Joystick? It is a small device whose primary purpose is to control an appliance. It works as an input device and helps the user navigate in different directions.

3. With the joystick, you can change your device by moving it up, down, left or right. It works according to the input you give and helps you control the device by tilting or rotating it.

Q:

CPU and memory are located in:

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  • 1
    Extension Board
    Correct
    Wrong
  • 2
    Motherboard
    Correct
    Wrong
  • 3
    Storage device
    Correct
    Wrong
  • 4
    Output device
    Correct
    Wrong
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Answer : 2. "Motherboard"
Explanation :

1. The motherboard acts as a platform to connect all of the computer's components together.

2. It connects the CPU, memory, hard drive, optical drive, video card, sound card, and other ports and expansion cards directly or through cables.

3. It can be considered as the backbone of the computer.

4. The CPU is the brain of the computer, and it is responsible for executing program instructions and processing data. Memory provides short-term storage for computers,

5. It stores program instructions and data that is used by the CPU.

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