CNET GLOSSARY: Terms for the techie
An electronic device (modulator-demodulator) that modulates outgoing digital signals from a computer to an analog telephone line and demodulates incoming analog signals to convert them to digital form. The term usually refers to devices used for dial-up Internet connections; it is often used to refer to high-speed cable, DSL, or ISDN adapters, which are not technically modems.
Can't find your term here? Have a question about the glossary? E-mail us.