Computer Basic Information
Why is the width of the data bus so important to the processing speed of a computer?

The wider it is, the more data that can fit into main memory
The wider it is, the slower the computer's processing speed
The wider it is, the greater the computer's processing speed
The narrower it is, the greater the computer's processing speed
The data bus isn't important to the processing speed of a computer

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

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

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