'Hello, World!' is a simple and easy-to-write computer program often used to illustrate a basic syntax programming language.
It allows the user to quickly test the environment and make sure that everything is working as expected. It is also an excellent way to make sure that the compiler or interpreter is working correctly. It is often the first program written by people learning to code.
Kernighan himself couldn't pinpoint when or why he chose the words 'Hello World.' When asked what sparked the idea for the name in an interview with Forbes India, he said his memory was dim, and he recollected seeing a cartoon that showed an egg and a chick, and the chick saying, "Hello, world."