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____ runs on a computer hardware and serves as a platform for other system to run on

A. System software

B. Operating system

C. Application system

D. All of above

Correct Answer : B.


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  1. SRM stands for
  2. Load balancing algorithms in ______________ class use the processor and process characteristics to allocate…
  3. ______________ refers to the technology in which some space in hard disk is used as an extension of…
  4. Whenever you move a directory from one location to another
  5. ____________ file system allows sharing in multiple different locations grouped under one folder.
  6. The time taken by the Dispatcher to stop one process and start another running is known as _________________.
  7. Identify the distributed computing model from the following statement. In this model, the user's processes…
  8. ______________is responsible for allocating primary memory to processes and for assisting the programmer…
  9. Which of the following is suitable after you install new drivers?
  10. Which of the following is an essential file of a MS-DOS boot disk?
  11. IPC stands for _________
  12. The _________takes any characters from standard input, and then echoes them to standard output.
  13. A standard UNIX system includes a set of ___________ and a set of ___________.
  14. One of the wonderful things about UNIX is its ___________names.
  15. __________ deals with when a modified page should be written out to secondary memory.
  16. A process is _________________
  17. An option commonly takes the form of a _____followed by __________characters.
  18. In___________, the requesting device or devices assert the signal bus_request.
  19. A page fault occurs when
  20. When a child dies, it sends a _______________signal to its parent.
  21. ______________approach simplifies debugging and system verification.
  22. DSM stands for______________
  23. Which of the following does not occur during the power-on-self-test (POST)?
  24. Which components appear in the initial windows start up display?
  25. In the case of____________ , changes to an open file are only locally visible.
  26. Wiretapping to capture data in a network is an example of ________________
  27. Recently deleted files are stored in
  28. ______________is a mechanism the prevents two or more processes from accessing a shared resource simultaneously.
  29. Taskbar is used for
  30. A bar that inform you the available options in your computer, opened applications, background running…