What are the uses of computer networks?

1.Business applications:
The main use is resource sharing. The goal is to make programs, equipment and data available to a group of authorized people in a company. For example: sharing printer, financial data, customer records.
Facilitating electronic communication.
E-Commerce.
2Home and personal applications:
Accessing information from remote location.
Entertainment for example, online gaming.
Another potential use is utility meter reading. For example, if you electricity usage was sent out over the internet to the your electricity provider’s office, there was no need to sent out meter readers.
Social and Professional networking, online activism: examples are Facebook, Twitter, Linkedin.
3Identity Theft:
Obtain data about someone or something illegally, breaking and stealing one’s accounts, Causing harm to a company or other organizations through cyber attacks, Hacking and Cracking.