What do applications use to communicate with the kernel?

What do applications use to communicate with the kernel?

• Shells
• System calls
• Shell scripts
• C programs 

 

EXPLANATION

In computing, a system call is the programmatic way in which a computer program requests a service from the kernel of the operating system it is executed on. This may include hardware-related services, creation and execution of new processes, and communication with integral kernel services such as process scheduling. System calls provide an essential interface between a process and the operating system.