A modem is also known as what?

A modem is known as a modulator/demodulator because its primary function is to convert digital signals from a computer into analog signals that can be transmitted over telephone lines (modulation) and also to convert incoming analog signals back into digital signals that the computer can understand (demodulation). This process is crucial for enabling data communication over different types of media, particularly in scenarios where digital data needs to travel through circuits designed for analog signals, such as traditional phone lines. Understanding this function highlights the critical role modems play in networking and internet connectivity.