A modem (modulator-demodulator) is a device that allows a computer to communicate with another computer via telephone lines. According to their appearance and installation location , modems are divided into
Internal modems are an electronic board installed directly into a computer, and external modems are an autonomous device.
An external modem is more expensive than an internal one of the same type due to its external attractiveness and easier installation.
The main parameter in the modem operation is the data transfer […]