Operating Systems Processes Flashcards
1
Q
What are operating system services?
A
They provide an environment for execution of programs.
2
Q
Example of a system call?
A
fork(), exec(), wait(), exit()
3
Q
What is a process?
A
An instance of a program in execution.
4
Q
Define process control block (PCB).
A
Data structure containing process info like state, ID, registers.
5
Q
What are system programs?
A
Programs that provide basic non-kernel functionalities.
6
Q
Purpose of system programs?
A
Support system operation like file manipulation, status info.
7
Q
Example of process state?
A
Ready, Running, Waiting, Terminated.
