Operating System

2. An OS manages device communication via their respective __________.
6. One of the advantages of multiprocessing is it increases the __________.
9. The OS must decide the right allocation upon numerous and possibly conflicting __________ for the resources.
13. One of the popular OS.
14. Multi- _________ is a type of OS that switches job and allow interaction with the user.
15. OS is a program that manages the _________.
16. Multitasking requires _________ computer system for user to interact.
18. OS is a _________ program where it is concerned with the operations and control of I/O devices.
19. At any time, one __________ at most is execute on behalf of the process.

1. __________ defends a system from external and internal attacks.
3. Multi- _________ is a type of OS that two or more processors working in a single computer system.
4. Allocating __________ is one of the responsibilities of OS to ensure optimum use of the CPU.
5. The OS organizes files into __________ to make them easier to use.
7. Multi- _________ is a type of OS that allows multiple threads of a single process to execute simultaneously.
8. _________ allocation is how various hardware and software are shared in a computer system.
10. A mechanism for controlling the access of processes or users to the resources defined by a computer system.
11. Another terminology for multitasking.
12. The CPU is never _________ in a multi-programming environment.
17. Multi- _________ is a type of OS that increases cpu utilization.