It relies on the networking technologies of the Internet protocol suite. It is the successor of the Advanced Research Projects Agency Network developed by DARPA of the United States Department of Defense. The Internet makes use of copper communications and an optical networking backbone to enable the World Wide Web , the Internet of issues, video switch, and a broad vary of data services. Wireless broad area networks are wi-fi networks that typically cowl massive areas, corresponding to between neighbouring towns and cities, or city and suburb. These networks can be utilized to connect branch offices of business or as a public Internet entry system. A typical system contains base station gateways, access factors and wi-fi bridging relays.