system call interface

A system call interface is the way applications communicate with the operating system to request assistance for tasks they can't perform alone, such as reading files or accessing hardware. Think of it as a formal process where programs ask the OS for services, and the OS securely grants those requests. It acts as a bridge, ensuring applications can operate effectively while respecting system rules and security. This interface simplifies complex hardware and system management, allowing programs to focus on their main tasks without needing to handle low-level operations directly.