COMPUTER FUNDAMENTALS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
what does a blu-Ray disk do?
A
Shiny Circular Disk, Optical storage device, used to store high quality sound, games and movies. Stores 5 times more than a DVD.
B
Shiny circular disk, optical storage device, can hold text, graphics, images, videos.
C
Storage medium for portable devices like mobiles and digital cameras.
D
Shiny circular disk, Optical storage device, stores data and movies with high video and sound quality. Stores 6 times more than CD.
Explanation: 

Detailed explanation-1: -Blu-ray is an optical disc format like CD and DVD. Blu-ray discs can hold more information than other optical media, because of the blue lasers that the disc drives use. A single Blu-ray disc can hold up to 25GB of data.

Detailed explanation-2: -The Blu-Ray disc (BD)format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data. This format offers more than five times the storage capacity of traditional DVDs and can hold up to 25GB on a single-layer disc and 50GB on a dual-layer disc.

Detailed explanation-3: -A Blu-ray disk is an optical storage device similar to CD and DVD technology. It also uses a laser to read and write to the disk, but instead of a red laser beam, as used in DVD and CD, it uses a blue-violet laser beam. This means it can burn smaller pits on the disk and so it has even more storage capacity than a DVD.

Detailed explanation-4: -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.

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