Chapter no 1

1. Introduction to network
Chapter no 01
By: Shaheen

2. To shareTo share
Networks
 A network is a collection of computers and devices
connected together
p. 8
ResourcesResources
Hardware
devices
Hardware
devices
Software
programs
Software
programs
DataData To save
time
and
money
To save
time
and
money
InformationInformation
Next

4. What is Network and Networking
Network: Two Device or more than two Device are join
to gather
But There is nothing of sharing is called network
----------------
Networking:
Between All that devices there are sharing of Resources
is called networking

6. Why We need Network
The following are the important benefits of a computer network.
File sharing: Networking of computers helps the users to share data files.
Hardware sharing: Users can share devices such as printers, scanners,
CD-ROM drives, hard drives etc.
Application sharing: Applications can be shared over the network, and
this allows to implement client/server applications
User communication: Networks allow users to communicate using e-mai
newsgroups, and video conferencing etc.
Network gaming: A lot of network games are available, which allow
multi-users to play from different locations

7. Network is Divided into two parts
Physical Logical
Client/server
P2P/Peer 2 peer
LAN
MAN
WAN
PAN
CAN

8. One early solution was the creation of local-area network
(LAN) standards which provided an open set of guidelines for
creating network hardware and software, making equipment
from different companies compatible.
What was needed was a way for information to move
efficiently and quickly, not only within a company, but also
from one business to another.
The solution was the creation of metropolitan-area networks
(MANs) and wide-area networks (WANs).
LANs, MANs, & WANs

9.  LAN  Components
 Switch
 Layer 2 Router
 MAN  Components
 Cisco Router or other company router
 WAN  Components
 Wireless Router

10. Network
Physical Logical
Client/server
P2P/Peer 2 peer
LAN
MAN
WAN
CCNA
N+
MCITP
MCSE 2012

11. Network components
HUB: A device that connects two local-area networks (LANs), or
two segments of the same LAN that use the same protocol, such as
1)HUB
2)SWITCH
3)ROUTER
4)Bridge
For Each components you have to know three things
…….1)Why we use ?
.........2)What are the advantages
.........3)what are the Disadvantages
if you know these three things than you have completed
knowing of that Components

12. HUB

13. HUB