Networking concept it is used for school children to better understand

1. By – Mrs Nagarani

2.  A computer network can be defined as a group of
computers and other peripheral devices that are
linked together for the purpose of sharing data
and hard ware resources
 Each computer in a network is called Node.
 The computers in a network maybe linked
through cables ,telephone lines, radio waves ,or
infrared light beams

3. S.N. Advantage Description
1
Efficient Use of
Storage Media
There is no need for separate media to store files. Files stored on
server can be used by many user at a time.
2 Preserving Information
While personal data can be lost by individual users, Files stored
on server are safe as regular backups takes place for server.
3 Reduction in Hardware Cost
In a network, devices (e.g. printer) can be shared by many users
and thus no need for multiple devices for each user. This reduce
the operation cost.
4 Efficiency
In network, there is or single point (e.g. server) for modification /
deletion of data / software. This increase system efficiency.
5 Redundancy
Network system has made hard copy system almost redundant as
files can be sent / shared in digital form.
6 Quickest Document Delivery e.g. files sent by email or other applications like WhatsApp

4. 1 Network Card
2 Networking Cable
3 Hubs and Switches

5.  A network card is used to physically attach a computer to
a network, so that it can participate in network
communication. Ethernet Network Card is the most
commonly used network card
 Nowadays motherboards come with inbuilt Network Card.

6. Modern Ethernet networks use twisted pair cable
containing 8 wires. These wires are arranged in a
special order ,and an RJ-45 connecter is crimped at
both ends of the cable
Ethernet Cable RJ-45 Connector

7. These devices that let you connect one or more
computers to other computers, networked devices, or
even other networks
Hub Switch

9. PAN LAN MAN WAN
• PAN is a computer network
that is mainly created for an
individual person.
• It is used for communication
among devices , such as laptop
, mobile etc.
• It can be either wired or
wireless. PAN generally a
range less than 10 meters (30
feet).
• LAN- two or more computers
and peripheral devices are
connected with in a small area
•MAN is a larger network than
LAN which is spread across a city
• WAN-is network connects two
or more computers located at
far way places

11. CLIENT – SERVER PEER TO PEER
• It is a network, where several
computers called Clients or
Workstations are connected to the
main computers called Server.
• A Server is a computer that provides
services to clients and controls
access to hardware, software and
other resources
• Clients are the computers, which
request services, like data retrieval,
storage etc. from the server
• Peer-to-Peer is a network where a
few computers having equal capacity
and capabilities are connected
together to use the resources
available on the network