Simple one for the day.

What is this and where is it widely used?

here is a funkier pic

p.s: Live Quiz scores will be applied to your accounts over the weekend. Some technical difficulties and a ton of laziness is holding it back :)

Cracked by: Neeraj , Goyal , sidsen , duriel , username , Dibyo , Raghuvansh , Kal , vishwa theja , Ananth and priyananda.

Neeraj, Goyal, sidsen, duriel, username, Dibyo, Raghuvansh, Kal, vishwa theja, Ananth and priyananda