difference between the internet and the world wide web

define internet

global network of computers and cables

define WWW

(world wide web) collection of websites and pages stored in the web servers

define URL

(uniform resource locator) it tells the browser where to find a resource on the web

what does a URL include

protocol https://

domain name www.bbc.com

page name /new/index.html

define HTTP

(hypertext transfer portocal) protocal that transfers the web pages between a web server and a browser

define HTTPS

the same thing as HTTP but it is encrypted to prevent anyone from understanding the data

define web browser

software that retrieves, interprets and displays the web pages

waht are the browsers function

bookmarks
history

multitabs

cookies

navigation tools

address bar

what are cookies

stores data in a web page

what is navigation tool

allows the user to refresh, go back or forth in a browser viewing web pages

how is a web page located, retrieved and displayed.

browser checks the URL, identifying the protocol, domain name and file name

DNS (domain name server) converts the domain name into an IP address

browser sends HTTP/HTTPS request to the web page using the IP address

the server sends back the HTML file and other resoures

browser interprets the HTML and displays the web page to the browser

what are cookies

data about the user stored in the browser to remember the user.

what are the types of cookies

persistat cookies

session cookies

what are session cookies

cookies that store data about the user temporary, it is deleted when the browser is closed, used for remembering things that you peeped logged on

what are persistent cookies

cookies that store data about the user nd it stays for a while, it is not deleted when the browser is closed, used for remembering login details.

what are cookies used for

saving personal details

tracking users preference

holds items in shopping cart

stores login details