Computer network is a collection of computing devices that are connected in various ways in order to communicate and share resources Usually, the connections.

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Presentation transcript:

Computer network is a collection of computing devices that are connected in various ways in order to communicate and share resources Usually, the connections between computers in a network are made using physical wires or cables Introduction to Computer Networks

LAN, MAN & WAN :- Network in small geographical Area (Room, Building or a Campus) is called LAN (Local Area Network) Network in a City is call MAN (Metropolitan Area Network) Network spread geographically (Country or across Globe) is called WAN (Wide Area Network)

Network Topology :- The network topology defines the way in which computers, printers, and other devices are connected. A network topology describes the layout of the wire and devices as well as the paths used by data transmissions. Introduction to Computer Networks

Networking Devices :- HUB, Switches, Routers, Wireless Access Points, Modems etc.

Computers: Clients and Servers In a client/server network arrangement, network services are located in a dedicated computer whose only function is to respond to the requests of clients. The server contains the file, print, application, security, and other services in a central computer that is continuously available to respond to client requests.

Networking Protocol: TCP/IP Introduction to Computer Networks

*Networking Applications* Searchable Data (Web Sites) E-Commerce News Groups Internet Telephony (VoIP) Video Conferencing Chat Groups Instant Messengers Internet Radio Introduction to Computer Networks