Networking
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Transcript of Networking
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Networking
Name:- Karanjeet Singh
Class:- XIISec:- BRoll No. :-16
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INDEX
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Types Of Network
Presented by:Karanjeet Singh
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A network consists of two or more computers
that are linked in order to share resources, exchange files, or allow electronic communications.
The computers on a network may be linked through cables, telephone lines, radio waves, satellites, or infrared light beams
Computer Network:
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File sharing
Resource sharing
Communication and collaboration Remote access
Data protection
Need of Computer Network:
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Routers Gateways Repeaters Bridges Hub Modem
Devices Use To Connect Network:
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Local Area Network Wide Area Network Metropolitan Area Network
Types Of Network:
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A local area network (LAN) is a group of
computers and associated devices that share a common communications line or wireless link.
Typically, connected devices share the resources of a single processor or server within a small geographic area .
. A local area network may serve as few as two or three users or as many as thousands of users.
Local Area Network:
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The WAN is a communications network that
makes use of existing technology to connect local computer networks into a larger working network that may cover both national and international locations.
Wide Area Network:
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A metropolitan area network (MAN) is a network that
interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network but smaller than the area covered by a wide area network (WAN).
It is also used to mean the interconnection of several local area networks by bridging them with backbone lines
Metropolitan Area Network (MAN):
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Network Topologies
Network Topology – Maps of how the physical or logical paths of network devices connect. The three major topologies are star, ring, and bus.
Star Topology – Most common Ethernet network topology where each device connects to a central hub or switch.
Hub – A device used with the Universal Serial Bus or in a star network topology that allows multiple device connections.
Switch – In star networks, a Layer 2 central controlling device. A switch looks at each data frame as it comes through each port.
Ring Topology – Network that is physically wired like a star network but, logically in a ring; passes control from one device to the next in a continuous fashion using a special data packet called a token. Used in Token Ring networks.
Bus Topology – Network wherein all devices connect to a single cable. If the cable fails, the network is down.
Mesh Topology – Network where all devices connect to each other by cabling to provide link redundancy for maximum fault tolerance. Most likely in WANs.
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Network TopologiesHub/Switch
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Network Topologies
Star Topology
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Network Topologies
Logical Ring Topology
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Network Topologies
Bus Topology
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Network Topologies
Differentiate between the three types of computer networks
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