What is a network A network consists of
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What is a network? A network consists of two or more entities, or objects, sharing resources and information. In a basic sense, sharing (giving or getting) is a fundamental aspect of networking.
Why do we need network? To share Resources Hardware devices Software programs To save Data time Information and money 2
Family Network
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1 What is a Computer Network? A computer network is a system in which multiple computers are connected to each other to share information and resources.
What is a Computer network? Ø Collection of computers and devices connected together Communications Device Enables a connection between computers Communications Media Satellites Cables Telephone lines Cellular radio One type is a modem 6
1 A Simple Network
1 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 machines available over network.
1 Advantages of a Computer Network.
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1 Following is the list of hardware's required to setup a computer network. Network Cables Distributors Routers Internal Network Cards External Network Cards
Basic Components of a Network Server: In computer networking, a server is a computer designed to process requests and deliver data to other (client) computers over a local network or the Internet.
Basic Components of a Network Workstation: A typical workstation is a computer that is configured with a network interface card, networking software and the appropriate cables.
Basic Components of a Network Hub: Hub is a device that splits a network connection into multiple computers. It is like a distribution center.
Transmission Channels Computer in a network is interconnected through transmission channels. These channels can be wired(cables) and wireless(satellites).
Computer Network Types PAN: A personal area network (PAN) is a computer network used for data transmission amongst devices such as computers, telephones, tablets and personal digital assistants.
LAN: - LAN networks connect computers together over relatively small distances, such as within a single building or within a small group of buildings.
WAN: - WAN networks connect computers together over large physical distances.
MAN: - This is a network which is larger than a LAN but smaller than a WAN, and incorporates elements of both. It typically spans a town or city and is owned by a single person or company, such as a local council or a large company.
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