A set of instructions by which an application program (a complete program that performs a specific function directly for the user) can access the computer's operating system. This term was viewed ...

The language and message format that applications use to communicate with the operating system, other OS-related software (system software) and software-based platforms. This software-to-software ...

A programming interface (API ... Contrast with low-level interface. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.