Network fore File Sharing

A Simple Computer Network for File Sharing

Simple Network with Two Computers Connected via a Cable

This diagram illustrates the simplest possible kind of computer network. In a simple network, two computers (or other networkable devices) make a direct connection with each and communicate across a wire or cable. Simple networks like this have existed for decades. A common use for these networks is file sha

Local Area Network

A Local Area Network (LAN) with Printer

Local Area Network (LAN) with Printer

This diagram illustrates a typical local area network (LAN) environment. Local area networks often feature a group of computers located in a home, school, or part of an office building. Like a simple network, computers on a LAN share files and printers. Computers on one LAN can also can share connections with other LANs and with the Internet.

Wide Area Networks

A Hypothetical Wide Area Network

This diagram illustrates a hypothetical  wide area network (WAN) configuration that joins LANs in three metropolitan locations. Wide area networks cover a large geographic area like a city, a country or multiple countries. WANs normally connect multiple LANs and other smaller-scale area networks. WANs are built by large telecommunication companies and other corporations using highly-specialized equipment not found in consumer stores. The Internet is an example of a WAN that joins local and metropolitan area networks across most of the world.

Wire Computer Network

Wired Computer Networks

Wired Computer Networks

This diagram illustrates several common forms of wiring in computer networks. In many homes, twisted-pair Ethernet cables are often used to connect computers. Phone or cable TV lines in turn connect the home LAN to the Internet Service Provider (ISP). ISPs, larger schools and businesses often stack their computer equipment in racks (as shown), and they use a mix of different kinds of cable to join this equipment to LANs and to the Internet. Much of the Internet uses high-speed fiber optic cable to send traffic long distances underground, but twisted pair and coaxial cable can also be used for leased lines and in

Wireless Computer Network

Wireless Computer Networks

Wireless Computer Networks

This diagram illustrates several common forms of wireless computer networks. Wi-Fi is the standard technology for building wireless home networks and other LANs. Businesses and communities also use the same Wi-Fi technology to set up public wireless hotspots. Next, Bluetooth networks allow handhelds, cell phones and other other peripheral devices to communicate over short ranges. Finally, cellular network technologies including WiMax and LTE support both voice and data communications over mobile phones.