Computer Basic Information
Which of the following memories contains a thin film of magnetic material sandwitched between two permanent bias magnets?

None of these
Bubble memory
Magnetic disk
ROM
Core memory

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Computer Basic Information
Which of the following is true concerning personal computers?

The electronic spreadsheet has been a primary reason for their popularity
None of these
They have been most successful in the home
They decrease the demand for mainframe computers
Their future is not so bright owning to the improved cost-performance ratio of minis and mainframes

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