These are the slides regarding Computer Network means what is computer network.Classification of Network that consists of LAN,MAN & WAN. Then we have Network Topologies that are- Bus,Star,Ring,Mesh & Tree Topology.

1. AA
SeminarSeminar
OnOn
Types of NetworkTypes of Network
&&
Network TopologiesNetwork Topologies
Presented By:Presented By:
Priyanka NainPriyanka Nain
I.T.T.R.I.T.T.R.
B.P.S. Women UniversityB.P.S. Women University
Khanpur Kalan (Sonepat)Khanpur Kalan (Sonepat)

2. Computer NetworkComputer Network
Computer network connects two or moreComputer network connects two or more
autonomous computers.autonomous computers.
The computers can be geographicallyThe computers can be geographically
located anywhere.located anywhere.

3. Network ClassificationNetwork Classification
 LANLAN
 MANMAN
 WANWAN

4.  Local-area network (LAN)Local-area network (LAN)
AA local area networklocal area network ((LANLAN) is a) is a
computercomputer networknetwork that interconnectsthat interconnects
computers within a limitedcomputers within a limited areaarea such as asuch as a
home, school, computer laboratory, orhome, school, computer laboratory, or
office building, usingoffice building, using networknetwork media.media.

6. Features of LANFeatures of LAN
 Contains printers, servers and computersContains printers, servers and computers
 Systems are close to each otherSystems are close to each other
 Contained in one office or buildingContained in one office or building
 Organizations often have several LANSOrganizations often have several LANS
 Limited geographic operationLimited geographic operation
 Generally lower in cost than a WANGenerally lower in cost than a WAN
 Cabling is primary transmission mediumCabling is primary transmission medium

7.  MMetropolitan Area Networketropolitan Area Network
(MAN)(MAN)
AA Metropolitan Area NetworkMetropolitan Area Network (MAN)(MAN)
is a large computeris a large computer networknetwork that spans athat spans a
metropolitan areametropolitan area usually within a cityusually within a city
or mega city. Its geographic scope fallsor mega city. Its geographic scope falls
between a WAN and LAN.between a WAN and LAN.

9. Features of MANFeatures of MAN
 Large network that connects differentLarge network that connects different
organizationsorganizations
 Shares different regional resourcesShares different regional resources
 Not owned by single organizationNot owned by single organization
 Serves as a link between LAN and WANServes as a link between LAN and WAN

10.  AA wide area networkwide area network ((WANWAN))
AA wide area networkwide area network ((WANWAN) is a) is a
network that covers a broad area (i.e., anynetwork that covers a broad area (i.e., any
telecommunication network that linkstelecommunication network that links
across metropolitan, regional, national oracross metropolitan, regional, national or
international boundaries)international boundaries)

12. Features of WANFeatures of WAN
 Two or more LANs connectedTwo or more LANs connected
 Over a large geographic areaOver a large geographic area
 The Internet is a WANThe Internet is a WAN

13. Network TopologyNetwork Topology
The network topology defines the way inThe network topology defines the way in
which computers, printers, and otherwhich computers, printers, and other
devices are connected. A networkdevices are connected. A network
topology describes the layout of thetopology describes the layout of the
wire and devices as well as the pathswire and devices as well as the paths
used by data transmissions.used by data transmissions.

14. Network TopologiesNetwork Topologies
 BUSBUS
 STARSTAR
 RINGRING
 MESHMESH
 TREETREE

15. BUSBUS
Commonly referredCommonly referred
to as a linear bus,to as a linear bus,
all the devices on aall the devices on a
bus topology arebus topology are
connected by oneconnected by one
single cable.single cable.

16. STARSTAR
 In Star topology, all theIn Star topology, all the
components of networkcomponents of network
are connected to the centralare connected to the central
device called “hub” whichdevice called “hub” which
may be a hub, a router or amay be a hub, a router or a
switch.switch.
 Most common topologyMost common topology

17. RINGRING
 In Ring Topology, all theIn Ring Topology, all the
nodes are connected tonodes are connected to
each-other in such a wayeach-other in such a way
that they make a closedthat they make a closed
loop or a circle.loop or a circle.
 It needs lot of wires.It needs lot of wires.

18. MESHMESH
 In a mesh network topology,In a mesh network topology,
each of the network node,each of the network node,
computer and other devices,computer and other devices,
are interconnected with oneare interconnected with one
another. Every node notanother. Every node not
only sends its own signalsonly sends its own signals
but also relays data frombut also relays data from
other nodes.other nodes.
 Internet is a mesh network.Internet is a mesh network.

19. TREETREE
 In Tree Topology, theIn Tree Topology, the
number of Starnumber of Star
networks arenetworks are
connected using Bus.connected using Bus.
This main cableThis main cable
seems like a mainseems like a main
stem of a tree, andstem of a tree, and
other star networks asother star networks as
the branches. It isthe branches. It is
also calledalso called
Expanded StarExpanded Star