Request kernel to create new process

Kernel is the layer of interface to Core hardware. Kernel function calls System call.

1. System initialization (memory space, address initialization)
2. Execution of the process creation system calls also cause process creation (Exec() – once running as a process, user program can invoke the system call – Exec to create a new child process executing another user program.)
3. User request to create a new process (i.e. fork())
4. Initiation of batch job creates new process