What is WordPress?
WordPress is an open source content management system. It makes it easy to manage your website without the necessity to understand web site programming.
WordPress is open source so there is a thriving community of developers constantly improving the software and creating plugins. WordPress is used by over 14.7% of Alexa Internet’s “top 1 million” websites.
A WordPress web site enables you to create pages (stand alone content) and blog posts (time-driven content) to expand the content of your web site. The look & feel of your web site is managed using themes. The software is highly customisable using PHP and MySQL.
To discover the differences between WordPress and Joomla please visit our article Which CMS? WordPress or Joomla!