Computer Basic Information
A six - digit card field used for postal ZIP codes is defined as

An alphabetic field
An alphanumeric field
A numeric field
None of these
A letter field

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

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

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