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Class notes cambridge and edexcel (everything u need tk to pass!) £8.56   Add to cart

Lecture notes

Class notes cambridge and edexcel (everything u need tk to pass!)

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  • July 16, 2024
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  • 2023/2024
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Internet: is a global concept that connects everyone around the globe for
data exchange
- Interconnected network
- The internet is basically the infrastructure




World Wide Web: is the collection of websites and web pages accessed
using the internet
- Only possible when you are connected to the internet




INTERNET VS WWW (difference)

Internet is used for exchange of data
Video calling, chatting
Uses TCP/IP protocol

World wide web is used to access the data on various websites
Explore web pages of a website
Uses URLS to identify web pages of a website

,Components of WWW

- Web browser: software that allows you to access websites and
display webpages
- Website: collection of webpages
- Webpages: one particular instance of websites

Examples of web browser:
Chrome
Opera
Safari
firefox


The main purpose of a web browser is to render hypertext markup
language (HTML) and display web pages

Other purposes include:
- storing bookmarks and favorites
- recording user history
- allowing use of multiple tabs
- storing cookies
- providing navigation tools
- providing an address bar

, Uniform Resource Locator


● A URL is a text-based address for a web page; it can contain the
protocol, the domain name and the web page/file name

www.mywebsite.com.pk./About/logo.png

www. is the host of website
mywebsite is the domain name
.com is the domain type
pk is the origin of
About/logo.png is the path




Protocols

Protocol: The protocol is the communication rules/protocol used to transfer
data between the client and the server

The padlock sign available highlights the HTTP protocol

2 types:
HTTP
HTTPS

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