?What is a Network A network consists of two or more computers that are linked in order to share resources (such as printers and CD-ROMs), exchange files, or allow electronic communications. The computers on a network may be linked through cables, telephone lines, radio waves, satellites, or infrared light beams. The three basic types of networks include: Local Area Network (LAN) Wide Area Network (WAN) Local Area Network A Local Area Network (LAN) is a network that is confined to a rel ...