“Hello World” is one of the simplest and most well-known programs in computer programming. It is often the first program beginners write when learning a new programming language. The program’s main purpose is to display the words “Hello, World!” on the screen. Even though it seems very basic, it helps learners understand how to write, run, and test code in a new language.

“Hello World” is important because it introduces key programming concepts in a very simple way. It shows how a program is structured, how output works, and how to make sure the coding environment is set up correctly. Almost every programming language—from Python to Java to C++—uses this example, making it a universal starting point for new programmers around the world.