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chapitre 2 :chapitre 2 :
Discovering Discovering ICT ICT
Teacher
Lakhdar kamel OULAD DJEDID
university Amar Telidji of Laghouat
English department
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Lesson 1Lesson 1 : Internet,
Lesson 2Lesson 2 : WWW,
Lesson 3Lesson 3 : Email,
Lesson 4Lesson 4 : videoconference,
Lesson 5Lesson 5 : wireless communcation,
Lesson 6Lesson 6 : smart board/ e-board,
PlanPlan: : CHAPTER 2CHAPTER 2 : : Introducing ICT,
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Hourly volume: h h Objective ::
Have an idea about some Internet. Content: What is the Internet, Its component, history, Get access to the Internet, What is ISP, Difference between ISPs, How internet works
CHAPTER 2 : CHAPTER 2 : Introducing ICTIntroducing ICT
Leçon 11Internet
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Recall for the Networking:
LAN (Local Area Network) connecting set of PCs in local area
Internet : Internet : whatwhat is it is it
Hub/Switcher
LANNotification =
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Recall for the Networking:
MAN (Meropolitaine Area Network) connecting set of LANs in campus or city
Internet : Internet : whatwhat is it is it
Switcher
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Recall for the Networking:
WAN (Wide Area Network) connecting set of LANs in large area
Internet : Internet : whatwhat is it is it
LAN
LAN
LAN
Router
Notification =
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The Internet is a global system of interconnected computer networks,
Internet = interconnection networks,
Connect all the computers of the world together,
Internet : Internet : whatwhat is it is it
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Clients (PCs): or
Servers :
Networks : LAN/MAN/WAN
Routers :
Communication Medium : Wired / wireless
Internet : Internet : its componentsits components
Network
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Internet : Internet : its componentsits components
Network
Network
Network
Network NetworkNetwork
Network
Network
client
server
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The history of Internet
Internet : Internet : HistoryHistory
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a direct Internet connection is a connection to internet server of a Network
Internet : Internet : get access to Internetget access to Internet Laghouat universitystudent
Router of Ouargla
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dial-in connection is connection via the phone lines and modems to a commercial Internet Service Provider (ISP),
Internet : Internet : get access to Internetget access to Internet
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It is a company that provides access to the Internet.
So it is intermediary between you and the internet
Internet : Internet : what is ISPwhat is ISP
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Dial-in. The slowest method of connecting to the Internet,
ADSL. Better than Dial-in in term of speed.
Internet : Internet : what is ISPwhat is ISP
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If we have different ISPs :
Which one is the best
Internet : Internet : differences between ISPsdifferences between ISPs
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Criteria of choice :
Bandwidth. this is the total speed that the ISP offers,
Price,
Access. Limited: you cannot exceed a number of hours of connection per month,
unlimited: you can connect any time during the subscription,
Technical service . is a team responsible for responding to your technical problems
Internet : Internet : diffrences between ISPsdiffrences between ISPs
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Internet : Internet : how internet workshow internet works
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Internet has diffrent services like the : web, email, chat……
These services use internet as a support to exchange information.
support
WWW , E-mail , Chat application
Internet : Internet : it’s services (applications)it’s services (applications)
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Lesson 1Lesson 1 : Internet,
Lesson 2Lesson 2 : WWW,
Lesson 3Lesson 3 : Email,
Lesson 4Lesson 4 : videoconference,
Lesson 5Lesson 5 : wireless communcation,
Lesson 6Lesson 6 : smart board/ e-board,
PlanPlan: : CHAPTER 2CHAPTER 2 : : Introducing ICT,
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Hourly volume: h h Objective ::
Have an idea about some WWW. Content: What is it, hypertext/ hyperlink, web site/web server/browser,
CHAPTER 2 : CHAPTER 2 : Introducing ICTIntroducing ICT
Leçon 22WWW
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www = World Wide Wed,
The web is the house of the spider,
www: www: what is itwhat is it
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is a system of hypertext documents and multimedia interlinked via the hyperlinks.
www: www: hypertext/ hyperlink hypertext/ hyperlink
Text
HyperText
hyperlink
texte image video audio
workshop
Hypertext document
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www: www: hypertext/ hyperlinkhypertext/ hyperlink
text photovideo audio
hyperlink
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www = like the web of the spider,
www: www: hypertext/ hyperlinkhypertext/ hyperlink
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The Web page contain a multimedia information
www: www: hypertext/ hyperlinkhypertext/ hyperlink
text photo video audio
Hypertext
Web page Web Browser
=
The web browser visualize the web page.
Workshop: visualizing a web page
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The web site is a set of web pages linked via hyperlink
Hosted in web server .
www: www: web site/web server/browserweb site/web server/browser
text photo video audiotext photo video audio
text photo video audio
text photo video audio
Web siteweb server
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textphotovideoaudiotextphotovideoaudiotextphotovideoaudiotextphotovideoaudio
textphotovideoaudiotextphotovideoaudiotextphotovideoaudiotextphotovideoaudio
textphotovideoaudiotextphotovideoaudiotextphotovideoaudiotextphotovideoaudio
browser
textphotovideoaudio
Google.com Lagh-univ.dz
facebook.com
www: www: web site/web server/browserweb site/web server/browser
www: www: web site/web server/browserweb site/web server/browser
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Lesson 1Lesson 1 : Internet,
Lesson 2Lesson 2 : WWW,
Lesson 3Lesson 3 : Email,
Lesson 4Lesson 4 : videoconference,
Lesson 5Lesson 5 : wireless communcation,
Lesson 6Lesson 6 : smart board/ e-board,
PlanPlan: : CHAPTER 2CHAPTER 2 : : Introducing ICT,
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Hourly volume: h h Objective ::
Have an idea about some WWW. Content: What is it, Its types, Its components, Its impacts, Video Conferencing Cell Phones, recapitulation of its benefits.
CHAPTER 1 : CHAPTER 1 : Introducing ICTIntroducing ICT
Leçon 22Videoconference
VideoconferenceVideoconference: : what is itwhat is it
It is form of communication that use video, audio, and the technology of computer in order to allow people to communication
It’s another type of online chat.
This can be as simple as a conversation between two people in private offices (point-to-point)
or involve several places (multi-point) with more than one person in each place.
VideoconferenceVideoconference: : its typesits types
Video input : video camera or webcam
Video output: computer monitor , television or projector
VideoconferenceVideoconference: : its componentits component
Audio input: microphones,
Audio output: usually loudspeakers
Data transfer: analog or digital telephone network, LAN or Internet
VideoconferenceVideoconference: : its componentits component
There are basically two kinds of videoconferencing systems:
1. Dedicated systems have all required components packaged into a single piece of equipment
VideoconferenceVideoconference: : its componentits component
There are basically two kinds of videoconferencing systems:
2. Desktop systems are add-ons (hardware boards, usually) to normal PCs, transforming them into videoconferencing devices.
A range of different cameras and microphones can be used with the board
VideoconferenceVideoconference: : its componentits component
On business
Videoconferencing can enable individuals in distant locations to participate in meetings on short notice, with time and money savings.
It Can enables low-cost face-to-face business meetings without leaving the desk.
VideoconferenceVideoconference: : its impactsits impacts
On on medicine and health
Videoconferencing is a highly useful technology for real-time telemedicine and telenursing applications, such as diagnosis, consulting, transmission of medical images, etc...
VideoconferenceVideoconference: : its impactsits impacts
On education
Videoconferencing provides students with the opportunity to explore, communicate, analyze and share information and ideas with one in another institutes.
A few examples of benefits :◦ guest lecturers brought in classes from other institutions,◦ researchers collaborating with colleagues at other institutions
on a regular basis without loss of time due to travel,◦ student interviews with an employers in other cities….
VideoconferenceVideoconference: : its impactsits impacts
VideoconferenceVideoconference: : videoconferencing cell videoconferencing cell phonephone
It is used by many businesses usually to save time and money.
Important advantage of video conferencing is that two or more parties can interact with each other face to face for the sake of meeting or to conduct business.
Health professionals can give a diagnosis by conducting an examination via a video conference.
VideoconferenceVideoconference: : recapitulation of its benefitsrecapitulation of its benefits