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Glossary

Technology evolves at a rapid-fire pace. That’s why we’ve built an easy-to-use glossary to help you better understand the terms, technologies and trends that impact your business.

Modem

Short for modulator/demodulator. A modem is a data communications device that connects a computer to the telephone network. Technically, a modem converts a computer's digital signals to analog signals that can be transmitted over standard telephone lines. Digital or ISDN modems, also called terminal adapters, are used to connect computers to digital ISDN lines.