Computer Basic Information
Which of the following would most likely NOT be a symptom of a virus ?

Existing program files and icons disappear.
Odd messages or images are displayed on the screen.
THe Web browser opens to an unusual home page.
None of these
The CD-ROM stops functioning.

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Computer Basic Information
In a punched card system, data is processed by a

accounting machine, keypunch machine, and sorter
keypunch machine, sorter, and posting machine
sorter, posting machine, and billing machine
accounting machine, posting machine, and billing machine
None of these

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