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Hourly volume: h h Objective ::

Computer Netwoking literacy. Prerequisite :

Little knowledge about computer science. Content: What is Computer Networking (CN), The utility of CN, It’s characteristics, It’s applications, Wireless Network.

Reportes::

CHAPTER 1 : CHAPTER 1 : Introducing ICT

Leçon 22Computer Networking

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Networking is the practice of linking two or more computers or devices with each other.

The connectivity can be wired or wireless

What is Computer Networking (CN),What is Computer Networking (CN),

wired

wireless

3

What is Computer Networking (CN),

The utility of CN,

It’s characteristics,

Establishing a local CN (LAN),

It’s applications,

Wireless Network,

ContentContent

4

Imaging computers without network. How we can share files ?

The utility of CNThe utility of CN

5

Imaging computers without network. How we can share resource (printer)?

The utility of CNThe utility of CN

6

Imaging computers with network. How we can share files ?

The utility of CNThe utility of CN

7

Imaging computers with network. How we can share resource (printer)?

The utility of CNThe utility of CN

8

Imaging computers with network. we can use it as a communication medium

The utility of CNThe utility of CN

9

Definition 2computers networking allow the process of

sharing Data and sharing resource between two or more computers

Shared Data

The utility of CNThe utility of CN

texte image video audio

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Definition 2computers networking allow the process of

sharing Data and sharing resource between two or more computers

Shared resources

The utility of CNThe utility of CN

printer CD/DVD modem Data Base Hard disk

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What is Computer Networking (CN),

The utility of CN,

It’s characteristics,

Establishing a local CN (LAN),

It’s applications,

Wireless Network,

ContentContent

12

A computer network can be categorized in different ways, depends on:

1.Topology2.Geographical area3.Communication architecture

Characteristics of CNCharacteristics of CN

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A computer network can be categorized in different ways, depends on:

1.TopologyA network topology defines the structure, design or layout of a network

Characteristics of CNCharacteristics of CN

Bus Ring Star

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A computer network can be categorized in different ways, depends on:

2.Geographical area◦LAN (local area network) : class, building,◦MAN (Metropolitan Area Network): campus,

city,◦WAN (Wide Area Network) : country,

the world (Internet)

Characteristics of CNCharacteristics of CN

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A computer network can be categorized in different ways, depends on:

2.Geographical area◦WAN

Characteristics of CNCharacteristics of CN

LAN 1

LAN 2 LAN 3

Router

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A computer network can be categorized in different ways, depends on:

2.Geographical area◦WAN

Characteristics of CNCharacteristics of CN

Internet is the bigest WAN

Internet = Interconnection networks = wold-wide network

Interanet = private Internet

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A computer network can be categorized in different ways, depends on:

3.Communication architecture◦Client/server◦Peer to peer

Characteristics of CNCharacteristics of CN

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A computer network can be categorized in different ways, depends on:

3.Communication architecture◦Client/server◦Peer to peer

Characteristics of CNCharacteristics of CN

Server

Data

Resources

client

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A computer network can be categorized in different ways, depends on:

3.Communication architecture◦Client/server◦Peer to peer

Characteristics of CNCharacteristics of CN

Peer to peer =Each PC is Servers and clientsAt the same time

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What is Computer Networking (CN),

The utility of CN,

It’s characteristics,

Establishing a local CN (LAN),

It’s applications,

Wireless Network.

ContentContent

21

Establishing a local CN (LAN)Establishing a local CN (LAN)1. PCs

2. Network Interface Card (NIC)

3. Communication support1- Cables 2- devises

Hub/switch

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Establishing a local CN (LAN)Establishing a local CN (LAN)4. Configuration (Protocol : TCP/IP and IP address )

5. Software

Network operation system : (WinXP, linux),

programs :

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Configuration : (Protocol : TCP/IP and IP address ):

Establishing a local CN (LAN)Establishing a local CN (LAN)

USAFR

ALG

Do you understand me?

Protocole= English Protocol = french

Protocol = Arabic

Protocol = communication language

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Configuration : (Protocol : TCP/IP and IP address ):

Establishing a local CN (LAN)Establishing a local CN (LAN)

Protocol = communication language

USA FR

ALG

Do you understand me?

Protocole= English Protocol = English

Protocol = English

yes

yes

Configuration : (Protocol : TCP/IP and IP address ):

Establishing a local CN (LAN)Establishing a local CN (LAN)

Protocol = communication language

Protocole = TCP/IP

Protocole = TCP/IP

Protocole = TCP/IP

TCP/IP is the Protocol used in Internet

Configuration : (Protocol : TCP/IP and IP address ):

Establishing a local CN (LAN)Establishing a local CN (LAN)

IP Adress = identité

USA FR

ALG

Hi, mohmmed

Protocol = English Protocol = English

Protocol = English

Hi, johName = joh Name = Phillipe

Name = Mohammed

Configuration : (Protocol : TCP/IP and IP address ):

Establishing a local CN (LAN)Establishing a local CN (LAN)

IP Adress = identité

Protocol = TCP/IP

Protocol = TCP/IP

Protocole= TCP/IP

192.168.0.1

192.168.0.2

192.168.0.3

Exemple:

Establishing a local CN (LAN)Establishing a local CN (LAN)

Câble torsadée

192.168.0.1192.168.0.2

192.168.0.3

Pro = TCP/IP

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What is Computer Networking (CN),

The utility of CN,

It’s characteristics,

Establishing a local CN (LAN),

It’s applications,

Wireless Network,

ContentContent

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Networking applicationsNetworking applications

City 1

City 2

City 4

City 3

City 5

Highway network

Road= link

support

Use = Applications

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1. The CN is used like a support of different applications, which circulate information.

2. The most famous are :

◦WWW◦E-mail◦Chat◦…

Networking applicationsNetworking applications

support

WWW , E-mail , Chat application

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Networking applicationsNetworking applicationsWWW

◦Acronym: World Wide Web,◦Utility: consult Web site, ◦Program: (navigator):internet explorer, firefox ◦Protocole : www.WebSiteName.com

.FR

.US

.DZ

.ORG

.Mil

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Networking applicationsNetworking applicationsE-mail

◦Acronym: Electronic-mail,◦Utility: exchange messages,◦Protocole : UserName@Provider.com ◦Program: outlook, navigator

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Networking applicationsNetworking applicationsChat

◦Acronym: Electronic-mail,◦Utility: discussion, ◦Program: skype, MSN

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What is Computer Networking (CN),

The utility of CN,

It’s characteristics,

Establishing a local CN (LAN),

It’s applications,

Wireless Network,

ContentContent

principal

Wireless networkingWireless networking

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radio waves or microwaves

Wireless technologies

types:

Wireless networkingWireless networking

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Access point

Without Access point= Ad hoc network

With Access point

Vehicle Ad hoc network

Wireless networkingWireless networking

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Wireless networkingWireless networking

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Advantage:◦mobility and elimination of unsightly cables.

Disadvantage: ◦potential for radio interference due to weather,

other wireless devices, or obstructions like walls.