Computer GK Practice Question and Answer

Q:

Integrated circuit is related to which generation of computer?

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  • 1
    first generation
    Correct
    Wrong
  • 2
    second generation
    Correct
    Wrong
  • 3
    third generation
    Correct
    Wrong
  • 4
    fourth generation
    Correct
    Wrong
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Answer : 3. "third generation"
Explanation :

Integrated circuits (ICs) were first introduced during the third generation of computers. The third generation of computers, which emerged in the 1960s, saw the development and widespread use of integrated circuits. These tiny electronic circuits contained multiple transistors, resistors, and capacitors on a single semiconductor chip. The use of integrated circuits significantly reduced the size of computers, increased their processing speed, and improved their reliability, marking a significant advancement in computer technology.

Q:

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

342 0

  • 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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  • 1
    monochrome monitor
    Correct
    Wrong
  • 2
    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:

The acronym of Reusable Optical Storage is-

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  • 1
    CD
    Correct
    Wrong
  • 2
    CD-RW
    Correct
    Wrong
  • 3
    DVD
    Correct
    Wrong
  • 4
    ROM
    Correct
    Wrong
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Answer : 4. "ROM"
Explanation :

Actually, the correct acronym for Reusable Optical Storage is not ROM. The correct acronym is ROS, which stands for Reusable Optical Storage. ROS refers to a technology that allows optical storage media, such as DVDs and CDs, to be rewritten or reused multiple times for data storage purposes.

Q:

Built-in memory of computer is-

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  • 1
    ROM
    Correct
    Wrong
  • 2
    PROM
    Correct
    Wrong
  • 3
    EPROM
    Correct
    Wrong
  • 4
    RAM
    Correct
    Wrong
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Answer : 1. "ROM"
Explanation :

The built-in memory of a computer typically refers to RAM (Random Access Memory). RAM is a type of volatile memory that the computer uses to temporarily store data that is actively being used or processed. It provides fast access to the data the computer needs to perform tasks, and its content is erased when the computer is powered off.

Q:

The data remains the same after saving the file and turning off the computer-

347 0

  • 1
    in RAM
    Correct
    Wrong
  • 2
    in secondary storage
    Correct
    Wrong
  • 3
    in the motherboard
    Correct
    Wrong
  • 4
    in primary storage
    Correct
    Wrong
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Answer : 2. "in secondary storage"
Explanation :

The data remains the same after saving the file and turning off the computer when it is stored in secondary storage. Secondary storage devices, such as hard drives, solid-state drives, and optical discs, are non-volatile storage media. This means that they retain data even when the power is turned off. Unlike volatile memory (such as RAM), which loses its content when the computer is powered down, data stored in secondary storage remains intact until it is intentionally deleted or modified.

Q:

Which of the following memory has the least access time?

331 1

  • 1
    cache memory
    Correct
    Wrong
  • 2
    Magnetic bubble memory
    Correct
    Wrong
  • 3
    Magnetic core memory
    Correct
    Wrong
  • 4
    random access memory
    Correct
    Wrong
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Answer : 1. "cache memory"
Explanation :

Cache memory has the least access time among the options provided. Cache memory is a high-speed type of volatile computer memory that provides high-speed data storage and access to the processor. It is faster than main memory (RAM) because it is located on the CPU chip or very close to it and stores frequently accessed data and instructions. Accessing data from cache memory is much quicker compared to accessing it from RAM, making cache memory the fastest type of memory in terms of access time.

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