Which of the following is used to receive and send computer files over telephone lines?

Options

A. Modem
B. MICR device
C. Floppy disk
D. Light pen

Answer

A

Explanation

Modulator Demodulator (Modem) is a hardware component that allows a computer or another device, such as a router or switch, to connect to the Internet. It converts or "modulates" an analog signal from a telephone or cable wire to digital data that a computer can recognize. Similarly, it converts digital data from a computer or other device into an analog signal that can be sent over standard telephone lines.