Introduction to Internet

Internet
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Internet consists of group of computer all over the world that helps us to communicate all over the world. It is a network that consists of millions of private, public, academic, business, and government networks. Internet provides us different types of information.
Internet comes into existence in 1960s by United States to build robust, fault-tolerant and distributed computer networks. Internet makes our work easily, it where saves our time there it also saves money by reducing the man power, paper work, postal charges etc.

Advantages of Internet
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Internet has many advantages that make it popular among different peoples around the world. Different types of advantages are as follows:-

Entertainment
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Entertainment is most popular reason why many people use the Internet now a day. Downloading games, visiting chat rooms or just surfing the Web are some of the reasons that people uses Internet to a very large extent. There are many games that are available free of cost for downloading. Peoples those are always willing to make new friends, for them chat rooms become very popular because this is the place where they can meet new and interesting people. Internet has been successfully used by people to find life long partners. There are numerous things that can be found on the Internet like Music, news etc.
Services

Communication
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Internet makes communication very much easier as today it is one of the most fastest & reliable media for communication. By the advent of Internet, we can communicate in a fraction of second with a person who is sitting in the other part of the world. With Internet we can convey our message instantaneously & can also able to receive the response immediately with in no time.

Information
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Information is one of the biggest advantage internet is offering. Any kind of information on any topic is available on the Internet. The search engines like Google, AltaVista, and yahoo helps us to search the information from the Internet. We can find any type of data on any kind of subject that we are looking for. There is a huge amount of information available on the internet for about every subject, about government law and services, trade fairs and conferences, market information, new ideas and technical support, the list is end less.
Students and children are among the top users who use the Internet for research. Today, students use the Internet for research, for the purpose of gathering resources. Teachers are giving assignments that require research on the Internet.

Computer Virus
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The full form of VIRUS is Vital Information Resources Under Size. It is a program written by individuals who want to damage Computers and Data stored in them. They are capable of Renaming Files in a computer so that programs no longer run. They can also overwrite, corrupt or delete files in computer. Virus can harm both software as well as hardware. Some viruses are so dangerous that they can harm the media & makes it unusable for ever.
Symptoms of Virus
• Computer does not Boot.
• New Files or Folders are created.
• Automatically starting and closing of Programs.
• Files get deleted.
• Size of programs changes.
• Whole system gets slow.
• Rename the files automatically.

E-mail
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E-mail stands for Electronic mail. It is used with Internet to write information, send & receive information. In this we can send one message to many addresses. To Send & Receive E-mail, a user must have an E-mail address, without this address we can neither Send nor Receive any information. E-mail address has two parts:-
Username @ host

Where Username is the Name of user to whom we want to send Mail & host is the name which provides the facility of E-mail.
Advantages of email -or electronic mail
• Emails can be sent in bulk
One email message can be sent to multiple recipients almost at the cost of a single email. When compared to conventional postal service this is indeed a huge saving.
• Almost instantaneous
Email messages are transferred instantly - well almost. They move as fast as current in copperwires or light in optical cables, which is pretty darn quick. When you send an email is leaves your computer and arrives at the recipient's inbox immediately. You can potentially have a conversation with a person over email - hence, the conversation view in Gmail.
• Cost of sending an email is zero or negligible
If you have a 24 hour internet such as a through cable / broadband connection, the cost of sending an email is zero or very very small. For dialup users, the maximum cost of sending an email will be that of a phone call or a few (depending on the size of the message and the files attached).
• Delivery is almost guaranteed
The delivery of email messages in almost guaranteed. Why do I say "almost"? Because sometimes for reasons that are beyond the scope of this article, email can get lost in cyberspace but this is very rare.
• Email is accessible
This is one of the greatest advantages of using email - its accessible anywhere, anytime and through a multitude of devices - computers, laptops, palmtops and even cell phones.
One can check email from any location as long as an active internet connection is available. Also email can be sent from any place with the same requirement of an active net connection.
• Built in spell checking
Most email programs (or email clients) have built in spell check dictionaries - so you have no excuse of sending badly written messages. Spell checkers are also found in online email services such as Hotmail and Yahoo.
• Automation
Several, if not all, steps in the emailing process can be automated. A good example is sending birthday greetings to people. An email program checks the birthday and the name of the recipient from a list. A message (from a template) is then formulated and sent on the specified date.
• Notification of new arrivals
Email programs or devices can also be set up so you get a notification through sound or a flash of light when new messages arrive at your inbox. Can be formal as well as informal Email messages do not signify informality. Just because email is easy to compose and send does not mean it cannot be used in formal and official correspondences.

Introduction to Internet

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