(monolingual) fonts. They map Tamil characters to standard English ASCII keyboard keys (e.g., typing "a" might produce "அ"). Legacy Usage : While modern web and government standards have shifted to fonts like

This table shows that what you might remember as "NC" could very well be one of these widely used fonts.

This usually happens if you are using a legacy font (like TSCII/Bamini) without having the font installed on that specific computer. Switching to Unicode fonts solves this issue.