EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

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EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE NETWORKING Computer network 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 However, some connections are wireless, using radio waves or infrared signals 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE IMPORTANCE OF COMPUTER NETWORKS 1. Sharing of device 2.Sharing of software 3.communication 4.Exchange of data COMPONENETS OF COMPUTER NETWORKS NETWORK BENEFITS 1.Sharing 2.Connectivity OTHER BENEFITS OF COMPUTER NETWORKS 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE The generic term node or host refers to any device on a network Data transfer rate The speed with which data is moved from one place on a network to another Data transfer rate is a key issue in computer networks Computer networks have opened up an entire frontier in the world of computing called the client/server model 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE File server A computer that stores and manages files for multiple users on a network Web server A computer dedicated to responding to requests (from the browser client) for web pages 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

Classification of network 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE ..\UNIT-1 VIDEOS\Network Engineer - Animated CV (v1.0).mp4 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE LAN,WAN & MAN 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE Local-area network (LAN) A network that connects a relatively small number of machines in a relatively close geographical area A bus technology called Ethernet has become the industry standard for local-area networks 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE Wide-area network (WAN) A network that connects two or more local-area networks over a potentially large geographic distance Often one particular node on a LAN is set up to serve as a gateway to handle all communication going between that LAN and other networks Communication between networks is called internetworking The Internet, as we know it today, is essentially the ultimate wide-area network, spanning the entire globe Metropolitan-area network (MAN) The communication infrastructures that have been developed in and around large cities 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

So, who owns the Internet? 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE Types of Network Local-area networks connected across a distance to create a wide-area network 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE

EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE APPLICATIONS 9/13/2018 EC-322 COMPUTER NETWORKS E.DIVYA, AP/ECE