What is an Internal Modem?
An internal modem is a card which contains circuits and chips. The card fits into an expansion slot inside your personal computer in such a way that its telephone socket is accessible through an open slot in the back or side of the computer. The telephone cable plugs directly into a telephone socket. What is an external modem? A normal external modem is a small box, usually the size of a paperback book. There are smaller-sized external modems, known as pocket modems. External modems often have a series of little indicator lights on the front panel, which light up or flicker to show what the modem is doing at any given time. These lights can provide useful clues about possible problems if the system is not working properly. An external modem is connected to a computer by a serial cable to the appropriate serial port. Some external modem models no longer need a modem cable and can be connected directly to the serial port at the rear of the computer. The latest modems are only a few milli
An internal modem is a device installed inside a desktop or laptop computer, allowing the computer to communicate over a network with other connected computers. There are two types of internal modems: dial-up and WiFi® (wireless). The former operates over a telephone line and requires a network access phone number and logon credentials to make a connection. The latter can connect wirelessly and without credentials in certain cases. The non-qualified term “internal modem” commonly refers to the dial-up modem, as technologies that followed are used with qualifiers to differentiate them. A current internal modem, also available as an external device, utilizes the v.92 protocol for communicating over copper telephone lines. The modem sends and receives data using modulated sound frequencies that it translates into digital bits of data. The word modem combines the words modulator and demodulator referring to this function. External modems preceded internal models, and were in proprietary us
