COMPUTER SCIENCE AND ENGINEERING
COMPUTER GRAPHICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Random scan system
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Both of these
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Raster scan system
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None of these
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Detailed explanation-1: -In a raster-scan system, the electron beam is swept across the screen, one row at a time from top to bottom. As the electron beam moves across each row, the beam intensity is turned on and off to create a pattern of illuminated spots.
Detailed explanation-2: -The random scan is a technique in which the display is constructed through an electron beam, which is directed only to the specific areas of the screen where the image is to be sketched or drawn.
Detailed explanation-3: -It moves from top to bottom considering one row at a time. Explanation: In Raster Scan Display a beam of an electron is moved across the screen. It moves from top to bottom considering one row at a time.
Detailed explanation-4: -Random scan has lower refresh rate about 30 to 60 times per second. Raster scan has higher refresh rate about 60 to 80 times per second.
Detailed explanation-5: -A raster scan, or raster scanning, is the rectangular pattern of image capture and reconstruction in television. By analogy, the term is used for raster graphics, the pattern of image storage and transmission used in most computer bitmap image systems.