COMPUTER HARDWARE COMPONENTS FUNCTIONS
COMPUTER OUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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TRUE
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FALSE
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Either A or B
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None of the above
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Detailed explanation-1: -A standard DVD can store up to 4.7 GB of data. The double-layer DVD can store up to 9 GB of data. Clearly, the data storage capacity of DVDs is much smaller than Blu-ray discs. These discs cost a little more compared to DVDs.
Detailed explanation-2: -A standard DVD holds 4.7 gigabytes of data. This is enough to hold one movie. If that movie is longer than two hours, you need two DVDs or a double-layer DVD that can store around 9GB. On the other hand, a double-layer Blu-ray disc can hold a massive 50 GB of data.
Detailed explanation-3: -Blu-ray Disc media also include these features:-25GB capacity discs can hold more than 5 standard DVDs and 50GB capacity discs can hold more than 10 standard DVDs.-Space for HD video recording-Massive hard disk backups and large multi-media files.
Detailed explanation-4: -The polycarbonate disc is 120 millimetres (4.7 in) in diameter and 1.2 millimetres (0.047 in) thick, the same size as DVDs and CDs. Conventional or pre-BD-XL Blu-ray Discs contain 25 GB per layer, with dual-layer discs (50 GB) being the industry standard for feature-length video discs.
Detailed explanation-5: -Because of its shorter wavelength (405 nm), substantially more data can be stored on a Blu-ray Disc than on the DVD format, which uses a red, 650 nm laser. Originally Blu-ray Disc could store 25 GB on each layer, and now they can hold 100 GB.