is an Operating System and just like Microsoft Windows, it is the Software that controls your Computer. However unlike Windows, Linux is an open source project that is generally downloaded and used free of charge.

Linux can be employed in a number of situations which include a desktop to replace the familiar Windows or as a general File/Web Server.

As a general office of home computer setup, Linux supports a wide range of desktop tools which can directly replace such products as Word, Excel, Power Point and Publisher, just to mention a few. The added advantage of course, is that most of this software is totally free being open source in nature.

Databases are designed to offer an organized mechanism for storing, managing and retrieving information. They do so through the use of tables. If you’re familiar with spreadsheets like Microsoft Excel, you’re probably already accustomed to storing data in tabular form. It’s not much of a stretch to make the leap from spreadsheets to databases.

There are several common types of databases; each type of database has its own data model (how the data is structured) and are known as SQL language

While storing data is a great feature of databases, for many database users the most important feature is quick and simple retrieval of information. In a relational database, it is extremely easy to pull up information regarding an employee, but relational databases also add the power of running queries .

Intranet isn't just a misspelling of Internet and even though an Intranet works exactly like the Internet, it is really just a network confined within a company, school, government or organization.

Many schools and non-profit groups have deployed them, but an intranet is still seen primarily as a corporate productivity tool. A simple intranet consists of an internal email system and perhaps a message board service. More sophisticated intranets include Web sites and databases containing company news, forms, and personnel information.

Intranets use the same HTTP server (Web server) technology, protocols and hypertext links as the public Web. The major difference is that they reside inside the firewall, fortified from the outside world