@OpenGradient $OPG #OPG invention of modern science and a new dimension to the civilized world. It is an effective device for speedy transmission of information and ideas from one person to another. Internet is practically a system of microwave networks working all over the earth. The internet is used for many things such as electronic mail, online chat, file transfer,and interlinked web pages and other documents of the World Wide Web. The second biggest use of the internet is to send and receive e-mail. Internet is also useful for the students of schools, colleges and universities. In Bangladesh, internet connection is very expensive. That's why,our students can not use it as they need. Bangladesh Government has taken some good steps to make internet connection easy and less expensive. The internet can also be dangerous. Information that people put on the internet is not always checked,and some may not be true. Some may even be harmful. Some websites may trick people into downloading viruses that can harm a computer or spyware that spies on its users. In internet chat rooms, people might be preying on others or trying to stalk or abuse them. The internet contains content that intended to offensive. Criminals may steal people's personal information or trick people into sending them money. So everybody has to catious regarding the use of it.