Computer networking allows sharing of information and resources through different types of networks. The three major types are local area networks (LANs), which connect computers in a limited area like a home or office; wide area networks (WANs), which span large geographical areas like countries and connect smaller networks; and metropolitan area networks (MANs), which interconnect users in a region larger than a LAN but smaller than a WAN. Other network types discussed include personal area networks (PANs) around an individual, home networks (HANs) within a home, and enterprise private networks connecting company offices securely.