INPUTOUTPUT AND STORAGE DEVICES
STORAGE DEVICES HARD DISK SSD AND FLASH MEMORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Blue Ray Disc (BD)
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Compact Disc (CD)
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Digital Video Disc (DVD)
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None of the above
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Detailed explanation-1: -DVD is a digital optical disc storage format which was developed and invented in 1995 and used to store high-capacity files, such as top-standard videos and movies. VCDs were standard optical digital storage disks before invention, but DVDs have higher capacity than compact discs of almost the same size and shape.
Detailed explanation-2: -In computers, several types of secondary storage devices like CDs, DVDs, Blue-Ray Discs, HDDs, etc. are used for permanent storage of data and information. Both CD and DVD are the types of optical storage devices whose operation is based on the optical effects.
Detailed explanation-3: -A standard compact disc measures 4.7 inches, or 120 millimeters (mm), across, is 1.2 mm thick, weighs between 15 grams and 20 grams, and has a capacity of 80 minutes of audio, or 650 megabytes (MB) to 700 MB of data.