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In a memory hierarchy system, data and programs are first stored in secondary or auxiliary memory. Program and its related data are brought in main memory for execution. What if the size of Memory needed for Program is more than the size of memory? Virtual memory is a idea used in some large computer systems which allow user to construct programs as though a large memory space were available, equal to total of secondary memory. Every address produced by CPU goes through an address mapping from so-called virtual address to a physical address in main memory. Virtual memory is employed to give programmers the illusion that they have a very large memory at their disposal although computer in fact has a relatively small main memory. A Virtual memory system offers a mechanism for translating program-generated addresses in correct main memory locations. This is done dynamically whereas programs are being executed in CPU. The translation or mapping is handled automatically by hardware through a mapping table.
Benefits of object oriented Modelling There are many benefits and advantages of object oriented modelling. Emphasis on quality and reuse are the major highlights of OOM. OOM p
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What is a shift register? Can a shift register be used as a counter? If yes, explain how? Ans: Shift Register: A register wherein data gets shifted towards left or right
What is structured programming? Structured Programming: means the collection of principles and practices that are directed toward developing right programs which are simple to
What is a linker program? Ans. links the program with other programs required for its execution is called a linker program.
What are the importance of Decentralization? a) Self responsibility b) Work autonomy c) Quick decisions d) Continuous involvement and e) Better control. What are the differe
Define processor clock. Processor clock is explained as the time periods in which all operations and data transfer within the processor take place.
a. Explain the Programming Paradigm? Discuss four major programming paradigms. b. State the three basic logic operators available in C++? Write a small program in C++ that uses
Explain about Bus of register transfer Since a computer has several registers, paths must be provided to transfer information among registors. If separate lines are used amon
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
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