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When can a user program execution be interrupted?
It won't be desirable to interrupt a program when an instruction is being executed and is in a state such as instruction decode. The most desirable place for program interruption will be when it has completed the prior instruction and is about to begin a new instruction. Figure below shows instruction execution cycle with interrupt cycle where interrupt situation is acknowledged. Please remember that even interrupt service routine is also a program and after recognizing interrupt next instruction executed by instruction cycle is first instruction of ISR (interrupt servicing routine).
Explain data rates in public switched telephone network. Data rates in PSTNs : A voice channel in a public switched telephone network is band restricted with a nominal bandwid
What is a linker program? Ans. links the program with other programs required for its execution is called a linker program.
Q. Layers of Distributed System architecture? Layers of Distributed System architecture are: Presentation Layer is actual user interface. This layer receives input and
Explain the Race Condition The situation where various processes access - and manipulate shared data concurrently. The final value of the shared data relies upon which process
Q. What is Gantt chart and Kiviat diagram? Gantt chart: Gantt chart explains numerous activities of every processor with respect to progress in time in busy -overhead - id
One that can be modified by the class even when the object of the class or the member function doing the modification is const.
Explain FIFO Page replacement algorithm. FIFO policy: This policy only removes pages in the order they entered in the main memory. By using this policy we simply eliminate a
Write in brief about UNIX process structure.
Which of the memory is volatile memory ? Ans. A volatile memory is RAM. Term Volatile memory implies the contents of the RAM get erased as soon as the power goes off.
What is a compiler? A Compiler is a program that accepts a program written in a high level language and creates an object program.
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