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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.
assignment on transaction flow, transform flow, transform mapping: refining the architectural design
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What is analysis, list its sub stages? Understand the requirement by constructing models. The goal of analysis is to state what need is to be done and not how it is to be done.
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A combinational circuit has 3 inputs A, B, C and output F. F is true for following input combinations A is False, B is True A is False, C is True A, B, C are
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A Scanner is a device which allows you to capture photographs or drawings or text from tangible sources (paper or slides etc.) in electronic form. Scanners work by detecting differ
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