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Computer Basic Information

Computer Basic Information
A hand-held device for optically reading bar codes on goods, labels & shelves is

None of these
Mouse
Wand
Light pen
Touch tablet

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Computer Basic Information
Which of the following is a communication network that is devoted to carrying computer information.

None of these
Data network
Data pack
Data point
Data module

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Computer Basic Information
If you want to secure a message, use a(n):

Cryptosystem
Encryption key
Cryptology source
Encryption software package

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Computer Basic Information
Which access method is used for obtaining a record from a cassette tape

random
sequential
direct
All of these
None of these

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Computer Basic Information
The _____ tells the computer how to use its components.

Network
Operating system
Application program
None of these
Utility

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Computer Basic Information
Design qualifications do not normally include

None of these
Control provisions
Blueprints
Output requirements
Input and storage requirements

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