Multi systems are those systems that allow you to work with the contents (content) in different languages.
Multilingual CMS called such CMS, which allow you to create, edit, delete content in different languages.
Pseudo multilanguage CMS called such CMS, which allow you to change interface language, but does not allow you to add or view content in different languages. FDE CMS - the first multilanguage CMS, working with content and at the interface level and at the level of content
Type of support switching languages in the project is also not without significance. FD Engine allows you to support selectors language of three types:
On subdomain or domain. Example: Russian version of the site is located on ru.fdstar.net; English at en.fdstar.net
Based on language prefix "folder. Example: Russian version of the site is located on fdstar.net / ru; English at fdstar.net / en *
By sending POST or GET parameters
* By the version of the site in the default language can be treated as without prefixes and with prefix
