SAMPATH (1).pptx

TOPIC
Computer
Networking
PRESENTED BY : S.SAMPATH
CSD-B(SECTION)

What is Networking ?
Application of networking
Advantages of Networking
Disadvantages of Networking
Classification of area by their Geography
INTRODUCTION

What is Networking
A Computer network is defined as the
interconnection of two or more computers.
It is done to enable the computers to
communicate and share available resources.

Applications of Networking
Sharing of resources such as printers
Sharing of expensive software’s and Database
Communication from one computer to another computer
Exchange of data and information among users via network
Sharing of information among users via network
Sharing of information and geographically wide areas

Advantages of Computer Network
Increased speed
Reduced Cost
Improved Security
Centralized Software Managements
Electronic Mail
Flexible Access

Diadvantages of Computer Network
High cost of Installation
Requires Time For Administration
Failure of Server
Cable faults

Classification of Area by their
Geography

Personal Area Network (PAN)
A personal area network is a computer network organized
around an individual person
It Generally consisits of a mobile, computer,a cell phone
or personal digit assistant. PAN enables the communication
among these devices
It can also be used for comunication among personal
devices themselves for connecting to a digital level
network and internet
The PAN’s can be constructed using wireless or cables

Local Area Network (LAN)
LAN is a network which is designed to operate over a small
physical area such as an office, factory or a
group of buildings
LAN’S are easy to design and troubleshoot.
Exchange of information and sharing of resources
becomes easy because of LAN
In LAN all machines are connected to a single cable
Different types of topologies such as star,tree, bus, ring etc
Can be used

Wide Area Network (WAN)
When network spans over a large distance or when the
computers to be connected to each other are at widely
seperated locations a local area network cannot be used a
wide area network (WAN) is installed
The communication between different users of WAN is
established using leased telephone lines,satellite,
links and similar channels
It is cheaper and more efficient to use the phone
network for the link

Metropolitian Area Network (MAN)
It is in betweeen LAN & WAN technology that covers the
entire city
It uses similar technology as LAN
It can be a single network such as cable tv network,or a
measuere of connecting a number of LAN’s or a large
network so that resources can be shared LAN to LAN as
well as device to device

Campus Area Network (CAN)
A campus area network is madeup of an interconnection of
LAN with limited geographical area.
Network equipments such as switches, routers and the
transmission media I’e optical fibre etc are almost entierly
owned by the campus owner

SAMPATH (1).pptx

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