Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission?
A. Interface
B. Modem
C. Attenuation
D. Teleprocessor
E. None of the above
Answer: Option B
This Question Belongs to Networking >> Networking Miscellaneous
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