The worldwide, interconnected system of computer networks.
Internet address (a.k.a. IP address)
An assigned series of numbers unique to each computer on the Internet which is used to identify it for data exchanges.
IP
Abbreviation for Internet Protocol. A protocol that ensures data goes where it is supposed to go on the Internet.
IRC
Abbreviation for Internet Relay Chat. An Internet service accessed through software programs that features real-time communication on channels devoted to specific topics.