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Operating System Practice Test Questions For All Competitive Exams
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An operating system (OS) is the program that, after being initially loaded into the computer by a boot program, manages all of the other application programs in a computer. The application programs on the computing device make use of the operating system by making requests for services through a defined application program interface (API).
 

Operating System Practice Test Questions For All Competitive Exams
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25 Questions

1. System running more than one processes concurrently are called
2. Every computer has a(n) ……, many also have ……
3. Which of the following is not an internal command of DOS?
4. ‘>’ symbol in DOS commands is used to
5. The first version of Unix was developed by
6. When a file contains instruction that can be carried out by the computer, it is often called a(n) …… file.
7. ............ is used for very large files or where a fast response time is not critical. The files to be transmitted are gathered over a period and then send together as a batch.
8. Which file in MS-DOS contains internal commands that are loaded during booting process?
9. Which one of the following is not an operating system?
10. Which of the following system is a function of dedicated PCs?
11. Grouping and processing all of a firm’s transactions at one time, is called
12. Which one of the following DOS command sends contents of the screen to an output device?
13. An operating system is a/an
14. Which of the following is the main program of MS-DOS?
15. It is the program that manages the hardware of the computer system including the CPU, memory storage devices and input/output devices.
16. Which one of the following is an MS-DOS external command?
17. While working with MS-DOS, which command transfers a specific file from one disk to another?
18. Which of the following is not an external command of DOS?
19. Which of the following operating systems is also known as single user operating system?
20. The purpose of DISKCOPY command is to
21. Linux is a type of …… software.
22. Who developed the operating system Linux started as a project by a student of Finland?
23. …… provides process and memory management services that allow two or more tasks, jobs or programs to run simultaneously.
24. ‘DOS’ floppy disk/operating system does not have
25. Which one of the following file names is invalid in DOS?

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