Internet and the world wide web
-
Upload
noha-mohamad -
Category
Education
-
view
502 -
download
0
description
Transcript of Internet and the world wide web
![Page 1: Internet and the world wide web](https://reader036.fdocuments.us/reader036/viewer/2022062614/546eb8bfaf795987318b4feb/html5/thumbnails/1.jpg)
INTERNET AND THE WORLD WIDE WEB
Grade 12
![Page 2: Internet and the world wide web](https://reader036.fdocuments.us/reader036/viewer/2022062614/546eb8bfaf795987318b4feb/html5/thumbnails/2.jpg)
Connecting To the internet
1)
Dial up networking
•Cheapest & Slowest
•56.6 Kbps
![Page 3: Internet and the world wide web](https://reader036.fdocuments.us/reader036/viewer/2022062614/546eb8bfaf795987318b4feb/html5/thumbnails/3.jpg)
Connecting To the internet
2)
ISDN
128 kbps
Integrated Service Digital Network
![Page 4: Internet and the world wide web](https://reader036.fdocuments.us/reader036/viewer/2022062614/546eb8bfaf795987318b4feb/html5/thumbnails/4.jpg)
Connecting To the internet
3)
ADSL
Fastest
Asymmetric Digital subscriber Line
Transforms the existing telephone wires into a high-speed digital data lines
![Page 5: Internet and the world wide web](https://reader036.fdocuments.us/reader036/viewer/2022062614/546eb8bfaf795987318b4feb/html5/thumbnails/5.jpg)
A Protocol
A Standard set of rules in which different networks are
linked together
![Page 6: Internet and the world wide web](https://reader036.fdocuments.us/reader036/viewer/2022062614/546eb8bfaf795987318b4feb/html5/thumbnails/6.jpg)
TCP/IP
The protocol
for sending
& receiving
data over the internet
TCP/IP breaks down the data into little packets then ensures that the data is reassembled into its original form
![Page 7: Internet and the world wide web](https://reader036.fdocuments.us/reader036/viewer/2022062614/546eb8bfaf795987318b4feb/html5/thumbnails/7.jpg)
Host ( Server)
The computer on the internet that provides services such as e-mail, news , data
![Page 8: Internet and the world wide web](https://reader036.fdocuments.us/reader036/viewer/2022062614/546eb8bfaf795987318b4feb/html5/thumbnails/8.jpg)
IP Address
The unique address that each computer has to be identified
The first two or three numbers identify the computer networkThe rest identify the individual computers
![Page 9: Internet and the world wide web](https://reader036.fdocuments.us/reader036/viewer/2022062614/546eb8bfaf795987318b4feb/html5/thumbnails/9.jpg)
You are tracked !!!!
Every time you send an-email or browse the web , your IP is send behind the scenes
![Page 10: Internet and the world wide web](https://reader036.fdocuments.us/reader036/viewer/2022062614/546eb8bfaf795987318b4feb/html5/thumbnails/10.jpg)
Internet Cache
Speeds up the display of web pages
The files & pages stored by the web browser on your hard disk
Temporary internet files
![Page 11: Internet and the world wide web](https://reader036.fdocuments.us/reader036/viewer/2022062614/546eb8bfaf795987318b4feb/html5/thumbnails/11.jpg)