system call

A system call is a way for software applications to request services from the operating system of a computer. Think of it as a formal request made by the application to the operating system, asking it to perform a task like reading a file, sending data over the internet, or creating a new process. This interaction allows programs to use the system's resources safely and efficiently. System calls act as a bridge, enabling communication between the software and hardware of a computer while maintaining security and stability.