Network is a collection of hardware components and computers interconnected by communications channels that allow sharing of resources and information. One way to categorize the different types of computer network designs is by their scope or scale. Common examples of area network types are: LAN (Local Area Network), WLAN (Wireless Local Area Network), WAN (Wide Area Network), MAN (Metropolitan Area Network). The network router is transformed from a device dedicated to connecting disparate networks to an integrated services device capable of multiple functions e.g. deliver voice, video, data and Internet access, wireless, and other applications.