Computer Networking
Terminals are required for

realtime, batch processing, and timesharing
None of these
realtime, distributed processing, and manager inquiry
realtime, timesharing, and distributed processing
realtime, timesharing, and message switching

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Computer Networking
Modulation is the process of

performing data encryption.
converting digital signals to analog signals
Multiplexing various signals into high speed line signals
converting analog signals to digital signals

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Computer Networking
The packets switching concept was first proposed

in the late 1980s for the Defense Ministry of US.
in the early 1960s for military communication systems, mainly to handle speech
in the late 1950s for Defense Ministry of US
All of these
None of these

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