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The device that converts computer output for transmission over telephone lines is called
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- interface
- interpreter
- modem
- I/O port
Correct Option: C
The modem is an external device or internal electronic circuitry used to transmit and receive digital data over a communications line normally used for analog signals. A modem attached to a computer converts digital data to an analog signal that it uses to modulate a carrier frequency. This frequency is transmitted over a line, frequently as an audio signal over a telecommunications line, to another modem that converts it back into a copy of the original data.