Ethernet

Technically speaking, the Institute of Electrical and Electronics Engineers (IEEE) defines Ethernet as protocol 802.3. But just plain "Ethernet" is a whole lot easier to say, and it’s likely how you’ve come to know that essential bringer of Internet.

Jargon aside, Ethernet simply refers to the most common type of Local Area Network (LAN) used today. A LAN in contrast to a WAN (Wide Area Network), which spans a larger geographical area is a connected network of computers in a small area, like your office, college campus, or even home. You might even be connected to one as you read this.