C99

C99 is a programming language. It's used for writing computer programs that tell computers what to do. C99 is a widely used programming language, and it's used to create apps, websites, and other types of computer programs. C99 uses commands and functions, which are like instructions for the computer to follow. Think of it like giving a recipe to a chef - you tell the chef how to make something, and they do it. C99 is like that, but for computers.