netWave

The O pen S ystem I nterconnection model is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system without regard to their underlying internal structure and technology.         The OSI model defines networking in terms of a vertical stack of seven layers.The upper layer of OSI model represent software that implements network service like encryption and connection management.The lower layer of the OSI model implements hardware-oriented functions such as routing ,addressing and flow control.All data that goes over a network connection passes through each of the seven layers.        The OSI model was introduced in 1984.Designed to be an abstract model and teaching tool,the OSI model remains a useful tool for learning about today's network technologies such as Ethernet and Protocols. Seven layers of OSI Physical layer. Data-link layer. Networ...

INTRODUCTION Network Topology is the arrangement of the various elements of a communication network.There are  two ways of defining network geometry:The physical topology and the logical topology.The physical topology of a network is the actual geometric layout of workstation. There are several common physical topologies, Bus network. Ring network. Tree network. Star network. Mesh network. 1.Bus Network Topology.         A Bus network topology is a network setup in which each computer and network device are connected to a single cable or backbone.Bus networks are well known for their nodes being located in a shape of a bus.       There are two types of bus network topologies,one of which is a"Linear bus" one.This type of network topology is the one where all of the nodes of the entire network are connected to one common transmission with only two endpoints.In this type of bus topology all of the data transmitted between nodes is ...

   A Computer Network or Data Network is a digital telecommunications network which allows nodes to share resources.In Computer Networks, networked computing devices exchange data with each other using data-link.The connection between nodes are established using either cable media or wireless media. Characteristics of a Computer Network.         Share resources from one computer to another.         Create files and store them in one computer,access those files from the    other computer(s) connected over the network.         Connect a printer,scanner, or a fax machine to one computer within the network and let other computers of the network use the machine available over the network. Required Hardware components to setup a network.        Network cables.        Distributo...