What is the Internet?

Simply, the Internet is a collection of millions of computers around the world who are connected between the one with the other. Media used to connect through a phone connection, fiber optic (fiber optic), cable koaksial (coaxial cable), satellite or wireless connection with.

When we logon (in this case is connected) with the internet, we are given access to other computers around the world who are also connected to the internet. With advances in technology are rapidly increasing, this when the internet can be contacted with a wireless connection from a PC or handheld computer from a notebook.

Once connected to the internet we can do some things, such as: send and receive email, text message with the media or voice, surfing (surfing) on the World Wide Web, or other matters with a particular software application.

The simple way of the Internet mail system the same as an introduction to the system or parcel, unless the Internet works very fast.
For example, when we are in now and Surabaya akan send email to the United States, after we press the Send (Send) before our next email will go to the mail server. (Mail server is usually not the computer that we use are at this time, but part of the service on the Internet, so that we can only exit from the Internet after pressing Send button without disrupting the process of sending the email). Then, our mail server will attempt to contact the mail servers in the United States through route Jakarta - Singapore - Japan - United States, or if the route is busy route can menngunakan Australia - United States.
Packet data in the Internet has a certain size so that when email is big enough before we can be divided in several packages and each package can be sent with a different route. Once arrived in the United States, a mail server there will be rebuilding our email into one whole section that is ready presented.

When the satellites used in the route-the route is busy mail server so we will try to send again after some time to actually sent. When a maximum of up to 4 minutes more (depending on our mail server settings) email is not sent the email will be sent email notification that we do not.

Route that must be passed the data package on the Internet very long and involve lots of computers around the world, so that when we send the data is personal data and / or important, you should use a secure server, the server is equipped with the encryption of data before sending data to computer facilities and decryption when receiving data packets from another computer.