internal modem

internal modem definition - computer

A modem that plugs into an expansion slot within the computer. Unlike an external modem, an internal modem does not provide a series of display lights that inform the user of the changing modem states. The user must rely entirely on the communications program. Contrast with external modem.


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Modem Housings

There are three ways that modems are connected to a computer. The internal modem (left) plugs into an expansion slot. The external modem (middle) plugs into the serial port, and the PC Card modem (right) plugs into a PC Card slot. (Image courtesy of U.S. Robotics.)






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