Since she is an IT student, she may be write HelloWorld more often than people who study in other major. But, it doesn’t rule out the possibility that other people say or write HelloWorld more often than IT students. Some people could very love to says HelloWorld.
What she want to say is, whenever she learned a new programming language, the first program that she created is a program that prints HelloWorld. Every books that she read and all lecturers that she met who taught the programming language surely start with HelloWorld. This may be done to show the existence of a new program that created and ready to face the world.
Just like H E R who just born and ready to see this broad virtual world. H E R welcoming this virtual world with a superb enthusiasm.