What is WordPress?
WordPress is a free and open source blogging tool and a content-management system (CMS) based on PHP and MySQL, which runs on a web hosting service. Features include a plug-in architecture and a template system. WordPress is used by more than 18.9% of the top 10 million websites as of August 2013. WordPress is the most popular blogging system in use on the Web, at more than 60 million websites. It was first released on May 27, 2003, by its founders, Matt Mullenweg and Mike Little, as a fork of b2/cafelog. As of September 2013, version 3.6 had been downloaded more than 6 million times.
One of the principal advantages of WordPress is that you are in control. Unlike remote-hosted scripts such as Blogger and LiveJournal, you host WordPress on your own server. Installation is very simple, as is the configuration.