View the following video before studying the notes that follow:

Credit: https://www.youtube.com/channel/UCsooa4yRKGN_zEE8iknghZA (Ted-Ed)

The Internet

The internet is a global interconnection of many networks.

In it’s simplest form,  a computer network is used to share hardware resources and facilitate  electronic communications between computers and other devices.

The internet is  the world’s largest computer network.

We can think of the internet as all the infrastructure – computers, routers, modems, fibre optic cables, wireless devices, satellites etc , that allows for the electronic sharing and communication.

Specialized services run on top of the internet by utilizing the provided internet infrastructure. Examples are : Whatsapp, The WWW, Email.

The World Wide Web

The world wide web is a group of webpages  which are connected to each  other by links called hyperlinks. 

A webpage is an electronic document that can be read/viewed by web browser software (e.g Chrome, Edge). Web pages are also know as Hypertext Documents which are written in Hypertext Markup Language (HTML).

Web pages are stored on Webservers, which can be accessed by a web address e.g. http://google.com.

Because many webservers can exist on the internet, the world wide web is a global interconnection of webpages via hyperlinks.

Read more about hyperlinks here: https://islandclass.wordpress.com/2020/11/04/hyperlinks/

Web Browsers

Web browsers are application software which is used to access the world wide web.

Examples include:

• Google Chrome
• Mozilla Firefox
• Safari
• Microsoft edge
• Opera web Browser
• Internet Explorer

UPDATED 2021-11-17

Fixed grammatical errors, added section on web browsers.

© 2021  Vedesh Kungebeharry. All rights reserved. 

Install Scratch 2 for our classes.
Follow the steps in the video to accomplish this task.

© 2021  Vedesh Kungebeharry. All rights reserved. 

Instructions

Practise the skills shown in the video above using this tutorial file : tutorial03

If you don’t have the file you can simply copy and paste the table below into excel and follow along:

© 2021  Vedesh Kungebeharry. All rights reserved. 

For all of your online accounts,

• Use Strong Passwords. a strong password is long and difficult to guess
  • Use long passwords , at least 8 characters long
  • Use a combination of capital and common letters
  • Use numbers
  • Use special characters.
  • E.g “P@ssw0rD”
    
    
• Change your passwords frequently
  • Change your password at least once per year
  • Change your password if you suspect that someone has accessed your online account.
  • Change your password if someone’s behavior appears that they intend to access your online account.
    
    
• Do not use the same password for any two online accounts.
  
  Choose complex but memorable passwords. Although your passwords can be complex, ensure that the password is memorable to you. e.g ” F@c3b00k_Tr!p_T0_Th3_M00n “. This password example can be thought of as “Facebook trip to the moon” but you replaced
  
  letter a with @,
  letter o with 0 (zero) ,
  letter i with !
  letter e with 3
  spaces with _ (underscore) and
  the first letter of each word is capitalized, all others were either lower case or symbols.
  
  
  

Once you choose a memorable phrase and you settle on your symbol replacements, you’ll be good to go with creating a strong and manageable passwords!

© 2021  Vedesh Kungebeharry. All rights reserved.