1.5 - World Wide Web Technologies

The World Wide Web is a system on the internet used to connect web pages to viewers. There are three world wide web technologies:

• Internet: The internet is a global network of other interconnected networks.
• The internet is publically accessible from all around the world
• It has poor security as it can be accessed by anyone
• Example: Sending an email
• Intranet: A network of computers used to share information privately within a network​
• Intranets are private and only accessible to only authorised people
• They can be expensive to set up
• Example: An organization's internal website
• Extranet: A network that allows different members of a business system to be connected​
• Extranets are secure systems that use firewalls to protect them
• They can be expensive and require regular maintenance
• Example: A property owner on a holiday rental site.