EyeOS is a web desktop operating system. It can perform a number of functions and a quick google search will turn up thousands of free Apps that can be added to enhance it further. Basic installed features include a mini web browser, email client, office suite software (compatible with MS Office),rss feed reader, media player, image viewer/manager, games and a lot more, too much to list here. For a lot more info about this software please visit it's Homepage.
NOTE: Default username is "root". Once you have logged in you can install more Apps by clicking on "Applications" on the desktop and then "Install Apps" on the toolbar. There's a ton already included that you can install.