how to write hello world imperative computer programs are made of statements which the computer executes on after the other. a common paradigm is the function call; functions are bundled sets of code that perform tasks. you can make your own. a basic function is "print" which outputs text to the screen. to make a computer program that says "hello, world", you commonly write a statement that calls the "print" function, passing it information on what to print, here the message "hello, world". different languages have different syntaxes for how to write statements and call functions, but it is very normal to surround the function parameters, the information that is passed, in parentheses. each function has its own expected parameters. programmers usually memorize all of these after looking them up; the skill builds over time and as the functions are used. you can look them up either by finding the source code of the function, or by finding appropriate documentation for it. hello world in python: print("hello world") now, if we move to c or c++, the program gets a little larger because these languages do not have an inbuilt print function, nor do they start executing code from the top of the file.