COMPUTER SCIENCE AND ENGINEERING
COMPUTER ORGANIZATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hard disk
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Magnetic tapes
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Floppy disk
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CD ROM
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Detailed explanation-1: -Blu-ray. The Blu-ray disk has emerged as clear leader in today’s optical storage market. Unlike CDs and DVDs, which use a red laser to read and write data, a Blu-ray disk uses a blue laser, which dramatically increases capacities and data transfer rates over CDs and DVDs.
Detailed explanation-2: -The CD drive shines a laser at the surface of the CD and can detect the reflective areas and the bumps by the amount of laser light they reflect. The drive converts the reflections into 1s and 0s to read digital data from the disc.
Detailed explanation-3: -An optical disk drive uses a laser beam to read the data from the disk as it is spinning.
Detailed explanation-4: -A CD burner is used to write (burn) the data on a CD. It incorporates a moving laser quite similar to a CD player which is known as ‘Write Laser’. The Write Laser which is more powerful than the ‘Read Laser’, has the capability to alter the surface of CD instead of just bouncing the laser light off.