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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.
Process termination A process terminates when it finishes implementing its final statement and asks the operating system to delete it by using the exit system call. At that tim
Write a short note on disk scheduling One of the responsibities of operating system O/S is to use the hardware efficiently. Whenever a process requires I/O to or from the
What are the two principles in Hungarian method?
THE PROGRAM WILL CHOOSE TWO RANDOM NUMBERS,THEN PRINT THEM OUT AS AN ADDITION PROBLEM.THE PROGRAM WILL THEN ASK THE USERTO ENTER THE CORRECT ANSWER.IF THE ANSWER IS CORRECT,THE PRO
Synchronization In communication among processes messages passed may be blocking or nonblocking - also called as synchronous and asynchronous. Blocking send : The sending pr
Define a program in execution is known as A program in execution is known as a process
Q. Consider the following page-replacement algorithms. Rank the algorithms on a five-point scale from "bad" to "perfect" according to their page-fault rate. Detach those algorithm
A hard-disk drive reads “120 GB HDD 7200 rpm 3 GB/sec transfer rate”. If the drive has a sector size of 512 bytes, what is the average rotational latency and transfer time to read
Explain thread in details
General graph directory The serious problem with using an acyclic-graph structure is ensuring that there are no cycles. When we insert links to an existing tree-structured dire
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