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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.
Purpose of storage: Several different forms of storage, based on different natural phenomena, have been invented. So far, no practical universal storage medium persists, and a
what is ment by avl tree n insertion n deletion ,2-3 tress insertion n deletion
Q. Why we need number systems? Number system is used to signify information in quantitative form. Some of the general number systems are octal, decimal, hexadecimal and binary.
Your task is to propose a business that has a Web presence on the Internet. Your business may be an online only business or a so-called "clicks and mortar" business. You
why we don''t use register at the place of ram?
Types E-commerce generally based on advertising, selling, marketing and buying, but due to the differences in needs, e-commerce has been classified according to the parties of the
In a 10000 line exchange, 0000 to 2999 is allotted to x group of subscribers, out of which 40% are active during busy hour. The remaining numbers are domestic numbers out of which
Convert the given S-R flipflop to a D-flip flop. Ans: The Truth Table for S-R Flip-Flop is illustrated in Fig.(a) and truth table of D Flip-Flop is illustrated in Fig.(b)
Q. Benefits of Device controllers? Using device controllers for attaching I/O devices to a computer system in place of connecting them directly to system bus has subsequent ben
What is roll area? A roll area having the program's runtime context. In addition to the runtime stack and other structures, all local variables and any data known to the prog
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