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Q. How Program execute in operating system?
Program execution: Operating system loads a program in memory and executes the program. The program should be able to end its execution either abnormally or normally.
I/O Operation: I/O refers to any file or any specific I/O device. Program may need any I/O device while running. So operating system should provide required I/O.
File system manipulation: Program requires towrite a file or read a file. The operating system gives the permission to program for operation on file.
Question: a) There are main goals of data security. List them and elaborate on how they provide protection. b) Describe threats associated with data security. c) Describe
Define Ageing Ageing is a method of enhancing the priority of process waiting in Queue for CPU allocation
Additional Reference bits algorithm Here we keep an 8-bit byte for every page in memory. At standard intervals the reference bit is shifted by the OS. If a shift register conta
Q. Distinguish among PCS and SCS scheduling. Answer: PCS scheduling is completed local to the process. It is how a thread library schedules threads onto available LWPs. SCS sch
Q. How Program execute in operating system? Program execution: Operating system loads a program in memory and executes the program. The program should be able to end its exec
What is an operating system? An operating system is a program that manages the computer hardware. It acts as an intermediate among users of a computer and the computer hardware
Define UnixWare UnixWare manages resources at the process level. Each resource allocated to the application is actually allocated to the process representing the application. C
When do we write a page from physical memory back to the disk? In general, caches have two broad types of writing policies. One approach is a write-through cache. In this case,
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The hardware to support demand paging is as follows Page table: This table has the skill to mark an entry invalid though a valid-invalid bit or particular value of protectio
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