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Network Tropology

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Network Tropology Network tropology is the arrangement of the various elements (links, nodes, etc.) of a computer network. Essentially, it is the topological structure of a network and may be depicted physically or logically. An example is a  local area network   (LAN). Any given node in the LAN has one or more physical links to other devices in the network. Classification: The study of network topology recognizes eight basic topologies, bus, star, ring, mesh, tree, hybrid. Description is given below: Bus network tropology: In local area networks where bus topology is used, each node is connected to a single cable, by the help of interface connectors. This central cable is the backbone of the network and is known as the bus (thus the name.) A signal from the source travels in both directions to all machines connected on the bus cable until it finds the intended recipient. Star  network tropology: In local area networks with a star...

Computer Virus

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What is Computer Virus: A computer virus is a small software program. A computer virus has the capacity to corrupt or to delete data.Designed to spread from host to host and has the ability to replicate itself. Effects of Computer  Virus :  computer  virus can slow down your computer. might corrupt your system files. might make some programs faulty or corrupt. might damage your boot sector creating problems when you boot into the windows. might steal important information from your computer and send to some other person. might change the power ratings of your computer and could blast the system How to get rid of virus:     Stay away from malicious sites.     Use Anti Virus and Update regularly.     Avoid unfamiliar publisher software.