"Hello World" is a simple program often used as the first example when learning a new programming language. It typically displays the text "Hello, World!" on the screen, serving as a basic introduction to coding concepts. This program helps beginners understand the syntax and structure of the language they are learning. The phrase has become a cultural reference in the programming community, symbolizing the start of a programmer's journey. Many tutorials and textbooks, including those for languages like Python, Java, and C++, use "Hello World" to demonstrate fundamental programming principles and to ensure that the development environment is set up correctly.