Which of the following are not true about optical disks?

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Which of the following are not true about optical disks? 1) They can store picture images as well as text. 2) They are available in fully erasable form. 3) They are read from and written to by laser beams. 4) Data can be accessed from them faster than from magnetic disks.

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Answered By 0 points N/A #83812

Which of the following are not true about optical disks?

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My Friend,

As I read your questions here, there are some point to consider here, the speed and the type of drive you are using (SATA/IDE).
Typically all optical disk will store all types of data, not all optical disk are in erasable form, you will need the rewritable type of disk, for you to erase the data at anytime, while other types are write once, yes indeed they are read from laser light or a electromagnetic waves within or near the visible light spectrum, now a days there are internal hard disk drive which is faster access rate than optical disk.

I hope as what I shared to you, will give you some answers to your questions.

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