ISIS is a free and easy-to-use system for using Indian scripts in computing, developed by Gautam Sengupta of the Center for Applied Linguistics & Translation Studies, University of Hyderabad. Instructions for downloading and installing ISIS are available here.

The major advantages of ISIS are:

• It is free
• It is intuitive
• It is easy to learn and use,
  e.g. to display क you just type 'k',
  to display ख type 'kh' and so on
• Anyone can learn to use it in less than half an hour
• ISIS is not an Indian script-aware word processor. It is a system for using Indian scripts on computers running Windows (2000 or XP) and Linux.
  This means that with ISIS you can
  • write emails
  • chat (Windows Messenger)
  • create documents
  • name files and folders
  using any or all of the major Indian scripts (together, or separately!)
• It uses Unicode, the international standard for character encoding that allows all major scripts of the world to be displayed and used with equal facility

ISIS supports the following scripts:

• Bangla
• Devanagari
• Gujarati
• Gurumukhi
• Kannada
• Malayalam
• Oriya
• Tamil
• Telugu
• Roman with diacritics for Indic transliteration