A communications protocol that supports an Internet connection over a dial-up line.

Communication protocol used over serial lines to support Internet connectivity.

protocol that allows connection to the Internet via modem. Another protocol that also permits such a connect is PPP.

A standard protocol for using a regular telephone line (a "serial line") and a modem to connect a computer as a real Internet site. SLIP has been pretty much replaced by PPP- a newer protocol which is more efficient than SLIP.

Standard to connect your machine to the Internet using a regular telephone line. SLIP is being replaced by PPP.

A protocol enabling computers to connect to the Net using telephone circuits. Superseded by PPP.