Well, you know how sometimes when you do something really good, like getting a good grade or helping someone, you get a pat on the back or a high-five? Well, sometimes big groups of people also give out awards to say, "Hey, you did a great job!"
The NII award is one of those awards! It stands for the National Institute of Informatics Award and it's given out to people who have done a really amazing job in the field of information technology.
Information technology is basically about computers and all the cool things they can do, like helping us find information, messaging our friends, or even playing games! The people who win the NII award are really good at making technology work even better for everyone.
So, think of the NII award as a big high-five for people who have worked really hard and done something really cool with computers and technology!