Internet & Intranet - Information and Communication Technology (ICT) Notes

Internet

• It is a worldwide or global system of computer networks whch is interconnected.
• It uses the standard Internet Protocol (TCP/IP).
• Each and every computer in Internet is recognized by a unique IP address.
• IP (Internet Protocol) Address is a unique set of numbers (such as 190.23.44.115) which identifies a computer’s location.
• To locate a computer name Domain name server is used. It provides a neme the IP Address.
• Internet is accessible to every user worldwide.
• Anyone can acces internet for uploading and downloading the file.

Intranet

• The intranet is the system in which multiple Personal Computers are connected to each other.
• Personal Computers in an intranet system are not available to the world outside the intranet.
• The intranet is used maily within a school, a company or some government office.
• Through Intranet files and information are shared within a defined area among personal computers within a company's secured environment.
• Ususally, some organization has its own Intranet network and employees of the organization can access the computers in their network.
• Also, in Intranet each computer has unique IP address.

Similarities between Internet and Intranet

• Both need an IP address for networking communication purposes. These include protocols like the FTP and TCP-IP.
• Both have instant messenger service like Google talk or yahoo.
• Both internet and intranet can be accessed only through web browser.

Differences between Internet and Intranet

• Internet is general to Personal Computers worldwide but Intranet is specific to a few personal computers.
• Internet provides a better and wider access to websites to a large population, whereas Intranet is restricted to a organization or company.
• Internet is not as safe as Intranet. Intranet can be safely privatized as per the need.