Computer Basic Information
A sizeable geographical area with communication based on the telephone system is though as

Wide area network
Modulator-Demodulator
None of these
All of these
Local area network

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Computer Basic Information
A large computer designed to handle complex scientific calculations

will likely require a character addressable storage unit
will not use numbered address locations
must use fixed length words of four character each
may use only a firmed word-length storage approach
None of these

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