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Q. Definition of Operating System?
Definition of Operating System:
• An Operating system is a program which controls execution of application programs and acts as an interface between user of a computer and computer hardware.
• A more common definition is as follows: operating system is the one program running at all times on the computer (typically called the kernel) with all else being applications programs.
• An Operating system is concerned with the allocation of services andresourceslikeprocessors, memory, information and devices. TheOperating System respectively includes programs to manage these resources like a traffic controller, a scheduler, memory management module, I/O programs and a file system.
Q. Presume that the following processes arrive for execution at the times indicated. Every process will run the listed amount of time. In responding the questions use non pre-empti
Q. Some untimely computers protected the operating system by placing it in a memory partition that couldn't be modified by either the user job or the operating system itself. Expl
File Organization * Sequential * Direct * Indexed A file still if it is stored on a magnetic disk or CD-ROM disk may perhaps have a sequential file organiz
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Which are the different states of a process? Different status of a process is: New: When the process is created. Running: When instructions are executed. Wait
Interval among the time of submission and completion of the job is known as Interval among the time of submission and completion of the job is known as Turn
Assume there are only 4 page frames in the physical memory, for the following reference string: 1, 2, 3, 4, 5, 3, 4, 1, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 4, 5, 4, 2, 8. a) What i
Elimination of common sub expression during code optimization An optimizing transformation is a rule for rewriting a section of a program to enhance its execution efficiency wi
What is input output operation ?
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