COMPUTER HARDWARE
COMPUTER MEMORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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MAGNETS
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LASERS
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HUMAN
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BOOK
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Detailed explanation-1: -A DVD player is very similar to a CD player. It has a laser assembly that shines the laser beam onto the surface of the disc to read the pattern of bumps . The DVD player decodes the MPEG-2 encoded movie, turning it into a standard composite video signal.
Detailed explanation-2: -In the case of CD-R, an infrared laser with a wavelength of 780 nanometers (nm) is employed, while DVD-R uses a red laser with a wavelength of 635 nm.
Detailed explanation-3: -In the simplest terms, an optical drive is the piece of hardware that lets a device read and interact with a disc. These discs can be CDs, DVDs, Blu-rays, game discs, and more. All optical drives are based on the same fundamental technology.
Detailed explanation-4: -DVDs are read by a laser. The laser senses the pits and bumps and tells the DVD player what to play. The DVD player or computer often knows when the DVD is in or not. If the DVD is very scratched or is breaking or broken, it cannot be read by the laser.