Computer Knowledge Practice Question and Answer
8 Q: Integrated circuit is related to which generation of computer?
711 063ecbd5235d86258ec99b4ad
63ecbd5235d86258ec99b4ad- 1first generationfalse
- 2second generationfalse
- 3third generationtrue
- 4fourth generationfalse
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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.
913 063ecbf5535d86258ec99c1ca
63ecbf5535d86258ec99c1ca- 1chartfalse
- 2Graphfalse
- 3drawingfalse
- 4all of the abovetrue
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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.
839 063ecbec335d86258ec99c013
63ecbec335d86258ec99c013- 1Printerfalse
- 2monitortrue
- 3Plotterfalse
- 4Projectorfalse
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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?
754 063ecc0d10fa4111f87e11f9f
63ecc0d10fa4111f87e11f9f- 1monochrome monitorfalse
- 2color monitortrue
- 3gray-scale monitorfalse
- 4flat panel monitorfalse
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Answer : 2. "color monitor"
Explanation :
a 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-
942 063ecc2420fa4111f87e12212
63ecc2420fa4111f87e12212- 1CDfalse
- 2CD-RWfalse
- 3DVDfalse
- 4ROMtrue
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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: In terms of Computer Networks, what does VPN stands for:
1010 063ac17eb5770eb565d5d95b9
63ac17eb5770eb565d5d95b9- 1vertical personal networkfalse
- 2Verbal Private Newsfalse
- 3virtual private newsfalse
- 4virtual Private Networktrue
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Answer : 4. "virtual Private Network "
Explanation :
A Virtual Private Network (VPN) is a technology that allows users to create a secure and encrypted connection to another network over the internet. VPNs are commonly used to ensure privacy and security when browsing the internet, especially when using public Wi-Fi networks. VPNs create a private tunnel for data transmission, protecting users' online activities from surveillance, censorship, and potential cyber threats.
Q: Built-in memory of computer is-
961 063ecc5217312b71d33df5a7f
63ecc5217312b71d33df5a7f- 1ROMtrue
- 2PROMfalse
- 3EPROMfalse
- 4RAMfalse
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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: These are types of LCD projectors.
1402 061c46b3164388627a2529c3e
61c46b3164388627a2529c3e- 1Flat Panel and Laserfalse
- 2Normal and Roof Mountedfalse
- 3Mesh Model and Curvedtrue
- 4none of thesefalse
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Answer : 3. "Mesh Model and Curved"
Explanation :
1. LCD panel types include normal and roof-mounted.
2. Liquid Crystal Display flats are thinner and lighter making them more useful and easier for users than CRTs. It consumes less power than CRT.