| Operating system | GNU/Linux Debian/Ubuntu | RedHat Linux | Open Suse | XP | Vista | Apple Mac |
| Rendering | Done | Done | Done | Done | Done | --- |
| Input methods | Done * | Done * | Done * | Done | Done ** | --- |
| Fonts – Level 1 | Done | Done | Done | Done | Done | --- |
| Fonts – Level 2 | Partial | --- | --- | --- | --- | --- |
| Fonts – Level 3 | --- | --- | --- | --- | --- | --- |
| Menus | Partial | Partial | --- | --- | --- | --- |
* The renganathan keyboard input is under development. All other input methods are supported.
** Important guidlines with regard to keyboard input and 'type sequence checking' are explained below in the documentation (available for download) in the Windows XP and Windows Vista sections.
Ubuntu, Debian and other GNU/Linux based systems
Ubuntu
Red Hat Enterprise Linux 5 - RHEL 5
RHEL 5 comes with full Tamil Unicode support.
The RedHat installer also comes with Tamil support
The interfaces (menus etc) have also been partly translated to Tamil and is work in progress.
Microsoft Windows XP
Support for Tamil Unicode is provide in the combined Sinhala Tamil Unicode installer available for download at:
http://www.siyabas.lk/files/SinhalaTamilKit.exe
The documentation is available at :
http://www.siyabas.lk/files/SinhalaTamil_Kit_Userguide.pdf
The interfacecs (menus etc) of windows XP have not been translated.
Microsoft Windows Vista
Vista has Tamil Unicode support displaying tamil unicode characters and for keyboard input.
The interfaces in Vista have not yet been translated.
The Tamil Unicode Pack for Vista can be downloaded at:
http://www.siyabas.lk/files/TamilKit_Vista.exe
Installation documentation can be downloaded at:
http://www.siyabas.lk/files/Tamil_Kit_Vista_UserGuide.pdf
Apple Macintosh
Tamil Unicode is supported.
A howto is available at:
http://salrc.uchicago.edu/resources/fonts/available/tamil/