 extending and modifying your site functionality  que es un modulo  a module is a set of php javascript and or css files that extends site features and adds functionality a set of core modules is distributed as part of the core software download additional contributed modules can be downloaded separately from the download extend page on drupalorg   que es un modulo experimental  un modulo experimental es un modulo que todavia esta en desarrollo y aun no es estable no se recomienda el uso de modulos experimentales en sitios de produccion  que es instalar y desinstalar  installing a core or downloaded contributed module means turning it on so that you can use its features and functionality uninstalling means turning it off and removing all of its configuration a module cannot be uninstalled if another installed module depends on it or if you have created content on your site using the module you would need to delete the content and uninstall dependent modules first ampliacion de la descripcion general consulta los temas relacionados que se enumeran a continuacion para obtener ayuda sobre realizar tareas relacionadas con la ampliacion de la funcionalidad de tu sitio recursos adicionales concept modules drupal user guide  extending and customizing your site drupal user guide  