Unix Process Management question and answer for interview
Brief about the initial process sequence while the system boots up. While booting, special process called the 'swapper' or 'scheduler' is created with Process- ID 0. The swapper manages memory allocation for processes and influences CPU allocation. The swapper inturn creates 3 children: the process dispatcher, vhand and dbflush with IDs 1,2 and 3 respectively. This is done by executing the file "/etc/init". Process dispatcher gives birth to the shell. Unix keeps track of all the processes in an internal data structure called the Process Table (listing command is ps -el).
