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Introduction to network
Chapter no 01
By: Shaheen
To share
Networks A network is a collection of computers and devices
connected together
p. 8
ResourcesHardware
devices Software programs Data To save
time and
money
Information
Next
What is Network and Networking
Network: Two Device or more than two Device are join to gatherBut There is nothing of sharing is called network----------------Networking:Between All that devices there are sharing of Resources is called networking
Why We need NetworkThe 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 applicationsUser communication: Networks allow users to communicate using e-mail, newsgroups, and video conferencing etc. Network gaming: A lot of network games are available, which allow multi-users to play from different locations
Network is Divided into two parts
Physical Logical
Client/server
P2P/Peer 2 peer
LAN
MAN
WAN
PAN
CAN
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
LAN Components Switch Layer 2 Router
MAN Components Cisco Router or other company router
WAN Components Wireless Router
Network
Physical Logical
Client/server
P2P/Peer 2 peer
LAN
MAN
WANCCNA
N+
MCITPMCSE 2012
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)HUB2)SWITCH3)ROUTER4)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
HUB
HUB