Before proceeding with your first Drupal installation, you should also review the best practices section. For help with Drupal terms, see the terminology page.
Some of the steps in the installation process can be performed with tools such as graphical applications for moving files and managing databases or tools that are provided by your hosting service. This documentation focuses on performing tasks at the command line. For information on using other tools, see the documentation that accompanies the application or is provided by your hosting service.
Creating a test site on a local computer
It is considered a good practice to do all development work on a separate test site before making changes to a production site. A test site allows you to evaluate the impact of upgrades, new modules, modifications to themes etc. without causing disruption to your live site. For information about setting up a web server on a local computer, see the Local Server Setup section of the Developing for Drupal guide.
Alternative methods for installation
Some web hosting companies offer "one-click" installations of Drupal, or specific Drupal support. You may be able to locate one on the Drupal hosting handbook page.There is also a handbook page listing Drupal distributions, which include installation profiles and pre-packaged distributions of Drupal and modules. These may be of help as well.
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Source : http://drupal.org/documentation/install