Tech Tips > Internet Terms

Infrastructure Terms

DNS: Domain Name Service

Translates human-friendly domain names (e.g., "www.iii.com") to IP addresses (e.g., "205.227.88.232").

PPP: Point-to-Point Protocol

A method of connecting a computer to a network over a modem line.

ISDN: Integrated Services Digital Network

An enhanced type of telephone service where telephone conversations and data communications travel digitally between the subscriber and the phone company.

DSL: Digital Subscriber Line

Another telephone company invention to get even higher digital speeds out of the same phone line.

POP: Point of Presence

For an Internet Service Provider (ISP), a city or other location where a connection can be made to the network.