![]() ![]() Exchange of data and information between different nodes or computers.Some of the nodes in the network may not be computers but network devices like switches, routers etc.Two computers connected to the network can exchange information with each other through the other nodes if they are not directly connected.A computer network is a number of computers or nodes inter connected by some communication lines.Prepare for various Government exams! Download Entri App! Computer Network IntroductionĪ computer network is a communication system for linking computers/hosts. In this article, we will be providing the aspirants with computer network notes along with the PDF download. It converts the digital data into an analog signal over the telephone lines.īased on the differences in speed and transmission rate, a modem can be classified in the following categories:Ĭable is a transmission media used for transmitting a signal.Computer Network is one of the most important topics for the preparation of competitive exams. A modem is not integrated with the motherboard rather than it is installed on the PCI slot found on the motherboard.A modem is a hardware device that allows the computer to connect to the internet over the existing telephone line.Router splits the single network into two networks of 12 workstations each, reduces the traffic load by half. This increases the traffic load on the network. Suppose there are 24 workstations in a network generates a same amount of traffic. Performance: Router enhances the overall performance of the network.Reliability: If the server has stopped functioning, the network goes down, but no other networks are affected that are served by the router.Security: The information which is transmitted to the network will traverse the entire cable, but the only specified device which has been addressed can read the data.It determines the best path from the available paths for the transmission of the packet.A router forwards the packet based on the information available in the routing table. ![]()
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