Joomla is a free and open-source content management system(CMS) used for
publishing web content.Joomla is written in PHP,uses object-oriented
programming(OOP) techniques and software design patterns and it stores data
in MySQL,MS SQL or POSTGRESQL database and includes features such as
page caching,RSS feeds,printable versions of pages,news
flashes,blogs,polls,search,and support for language internationalization.