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Some common Top-Level Domains are as follows:
Abbreviations Used to Denote Abbreviations Used to Denote
.com Commercial firms .net ISP’s/Networks
.edu Universities/Educational firms .org Non-Government/Non-Profit
Organisations
.gov Government Bodies/Organisations
.co National and Multinational Companies
.mil Military Organisations
.int International Organisations
In DNS, codes of countries can also be included. The code comprises of two letters. Some common codes of
certain countries are:
Code Denotes the Country Code Denotes the Country
.au Australia .in India
.uk United Kingdom .us United States of America
.jp Japan .nz New Zealand
.fr France
• Firewall: A firewall is a network security system that monitors and controls incoming and outgoing network
traffic based on predetermined security rules. It acts as a barrier between a trusted internal network and untrusted
external networks, like the internet.
• IP (Internet Protocol) Address: It is a unique logical address of a device that helps identify a device at the
time of sending and receiving data in a Network. It is made up of numbers or characters. Remembering these
numeric values to access a specific website is a difficult task, so these numbers are given sensible textual names
called web addresses.
Microsoft Edge
Microsoft Edge is designed by Microsoft and comes as a default browser installed with Windows Operating System.
To make your navigation easier on the Internet, we have to understand some basic features of Microsoft Edge.
Current Tab Refresh New Tab Address Bar Favourites More
Back/Forward
64 Artificial Intelligence Play (Ver 1.0)-IX

