Network
Before defining the term "Internet" it is better to tell you something on network.
A network is a group of computers connected tone another. When connected, computers from network can communicate with one another. That is, you can transfer files and text messages from one computer to another one.
One of the greatest advantages of a network is that you can share resources. Ie, Say you have five computers in your office in different sections. If all the five sections require frequent printouts, then you need five printers. If these computers are connected, then you need only one printer. Any of these five computers can issue the print command and take the printout.
Like printer you can also share hard disk within a network. There are lot of advantages by doing this. You can maintain an efficient central file system instead of copying files to a diskette and transferring to another computer.
Basically there are two types of networks, LAN and WAN. LAN (Local Area Network) is a group of computers connected to one another in an office or in the same building.
When one LAN in a building is connected to another LAN in a different location, we call it WAN.
Monday, May 18, 2009
Internet
In 1969, United States Department of defense worked on a project called ARTANET (Advance Research Projects Agency)
It is developed for US military operations. In this project, several computers are connected across the United States in a ring fashion, so that if a connection is broken between two computers, it can still communicate, in the opposite direction.
At the same time, the technology to connect computers enhanced and became economically viable for private organizations. American Libraries and Universities started to setup their own computer Networks.
U.S. Department of Defense thought that it's a wonderful idea to connect ARPANET to these institutions. They started using information from American Libraries and Universities. Similarly many networks of other organizations connected to this network. This system of inter network later came to be known as INTERNET.
Apache is developed for servers running Linux operating system and IIS is developed for servers running Windows NT/2000.
Web server always listens to the request from the user. When a request is encountered it fetch the requested page and transfers to the user.
In 1969, United States Department of defense worked on a project called ARTANET (Advance Research Projects Agency)
It is developed for US military operations. In this project, several computers are connected across the United States in a ring fashion, so that if a connection is broken between two computers, it can still communicate, in the opposite direction.
At the same time, the technology to connect computers enhanced and became economically viable for private organizations. American Libraries and Universities started to setup their own computer Networks.
U.S. Department of Defense thought that it's a wonderful idea to connect ARPANET to these institutions. They started using information from American Libraries and Universities. Similarly many networks of other organizations connected to this network. This system of inter network later came to be known as INTERNET.
Apache is developed for servers running Linux operating system and IIS is developed for servers running Windows NT/2000.
Web server always listens to the request from the user. When a request is encountered it fetch the requested page and transfers to the user.
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