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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.
Explain about IP Access. IP access on the network by: • Intranets onto Virtual IP Networks and • Extranets onto Virtual IP Networks.
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Explain Big - Endian and Little- Endian representations Ans: The Big- endian is used where lower byte addresses are used for the more significant bytes (leftmost bytes) of the
What is Page-Stealer process? This is the Kernel process that makes rooms for the incoming pages, by swapping the memory pages that are not the part of the working set of a pro
Buses: Execution of 1 instruction need the following 3 steps to be performed by the CPU: I. Fetch the contents of the memory location pointed at by the computer syst
What is PBO and PAI events? PBO- Process before Output-It verifies the flow logic before displaying the screen. PAI- Process after Input-It verifies the flowlogic after
In MS-DOS device drivers are installed and loaded dynamically it implies that they are loaded into memory when computer is started or re-booted and accessed by operating system as
How to select valid lines for secondary list? To stop the user from selecting invalid lines, ABAP/4 offers various possibilities. At the end of the processing block END-OF-SEL
my project is in .net of lan chatting its have tcp\ip connection problem
Handlers Classification In 1977, Wolfgang Handler suggested a complex notation for representing the pipelining and parallelism of computers. Handler's categorization addresses
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