Computer Basic Information
What does a system bus do?

None of these
allows the user to communicate with the computer
connects various components within the computer
carries out instructions
stores data and instructions

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Computer Basic Information
Which of the following is not true of a magnetic disk?

It provides only sequential access to stored data
It is expensive relative to magnetic tape
All of these
It does not provide an automatic audit trail
Users can easily update records by writing over the old data

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