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Introduction A typical computer network, either LAN, MAN, or WAN is consists of a large number of communication devices along with communication medium or channels. To build a typical LAN, especially, we need to have computers, communication mediums or channels, NOS(Network Operating System), and networking devices such as Hubs, Switches, Read more…

Introduction A switch is used to connect the incoming link to the desired outgoing link and directs the incoming message to the appropriate outgoing link. A communication switch is used to allow/stop the flow of messages through the path connecting the receiver and the transmitter.  The role of a switch Read more…

Introduction of Networking Model The Network Model manages communication between computers and network devices. They define rules, protocols, and structures for data communication. Most of the computer networks today are organized as a series of layers arranged as a stack one upon another. The layering of the network model is Read more…

Introduction This is also called LAN topology because of these are mostly and mainly implemented in a LAN network. Definition Network topology is the study of geometric or graphical arrangement or mapping or layout of the network elements (may be devices, links, nodes etc.) in a computer network along with Read more…

Classification of Computer Networks (A) Based on network physical geographical size/area and the area they cover, computer networks are classified into the following types: – This is one of the most common types of computer networks. (1.) Personal Area Network(PAN)  (2.) Local Area Network(LAN)  (3.) Metropolitan Area Network(MAN) (4.) Wide Read more…

Transmission/Communication Medium: Transmission channel: A communication medium is also roughly known as a Transmission channel. Actually, transmission channel and transmission media are closely related but not exactly the same, although they are often used interchangeably in basic networking discussions. Transmission media refer to the real physical or wireless medium through Read more…