Introduction to Data Networks

ISBN: 0974278734 | 52 pages | 2003 | CHM | 1 Mb Data networks are communication systems that are installed and operated exclusively for the transfer of information between data communication devices (such as computers). Data network types include premises distribution networks (PDN*s), local area networks (LAN*s), metropolitan area networks (MAN*s), and wide area networks (WAN*s). These are hierarchical with the PAN being the smallest and the WAN being the umbrella architecture. PANs are short-range data communications systems that are primarily used to interconnect peripheral equipment (such as a mouse or keyboard) with a local computer or computing system. LANs are designed to reliably transfer large amounts of data quickly and error-free over a very small area such as an office. MAN*s facilitate LAN-to-LAN information exchange in a local telephone exchange area. The use of a WAN allows for information to be exchanged between LAN*s located at significant distances from each other. For example a LAN in Chicago sharing information with a LAN Seattle would do so across a WAN. A data network is composed of several key parts such as data terminals (e.g., personal computers), network adapters, access wiring, and data distribution nodes (e.g., routers, brouters, and switches.) In some data networks, network management/control systems are used to configure, monitor, coordinate, and control the network elements. Links (1 Mb) Quote:http://rapidshare.com/files/84510102/Data_Networks_PDN_www.softarchive.net.rar