COMPUTER HARDWARE
STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Blu-disk
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CD
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DVD
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None of the above
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Detailed explanation-1: -Option (D) Among the optical storage devices, the blu-ray disk has the highest memory capacity. As the one layered and one-sided blu-ray disc can possess the data up to 50 GB and the double-sided blu-ray hold just double data.
Detailed explanation-2: -A single-layer disc can hold 25GB. A dual-layer disc can hold 50GB.
Detailed explanation-3: -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-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.
Detailed explanation-5: -A CD can store up to up 700 megabytes (MB) of data. A single-layer DVD can hold 4.7 gigabytes (GB) of data, and a double-layer disk can hold 8.5 GB. A single-layer Blu-ray disk can store 25 to 33.4 GB of data, and a quad-layer Blu-ray disk can store up to 128 GB of data.