What is Internet?

Internet was conceived by the Advanced Research Projects Agency of the U.S government in 1969 and was first known as the ARPANE. The question arises what is internet?
The internet is a worldwide collection of computer networks. That exchange data by using a common software standard. internet users can share information in a variety of forms.

• E-mail 
• Communication 
• Information 
• Entertainment 
• service 
• E-commerce 

E-mail:

For many Internet users, electronic mail(email) has practically replace  the Postal Service for short written transaction. Electronic mail is the most wildly used application on the Net. More recently, internet telephony hardware and software allows real-time conversations