Computer Basic Information
What is meant by quad-density (QD) diskette?

All of these
It has double the number of tracks per inch
It is double-sided disk
None of these
It is double density disk

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Computer Basic Information
The magnetic disks and drums are like recirculating shift registers because

their storage is non volatile
their access times are about the same
None of these
stored data is available for reading over and over again in the same order.
they have about the same storage capacity

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