COMPUTER HARDWARE COMPONENTS FUNCTIONS
EXTERNAL AND INTERNAL STORAGE 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: -The process of recording data onto a recordable or rewritable optical disc is called tracking. To write to, erase, or overwrite rewritable optical discs, track change technology is used. In terms of functionality, the distinction between NAS and HHD is blurring because they both provide storage services to the network.
Detailed explanation-2: -Optical disk has one long spiral track, which starts at the outer edge and spirals inward to the center. Each sector is of the same length regardless of whether it is located near or away from the disk’s center.
Detailed explanation-3: -An optical disk drive uses a laser beam to read the data from the disk as it is spinning. It distinguishes between the pits and lands based on how the light reflects off the recording material. The drive uses the differences in reflectivity to determine the 0 and 1 bits that represent the data.
Detailed explanation-4: -These include CDs, DVDs, and Blu-ray discs.
Detailed explanation-5: -An optical disc is designed to support one of three recording types: read-only (e.g.: CD and CD-ROM), recordable (write-once, e.g. CD-R), or re-recordable (rewritable, e.g. CD-RW).