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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 the mechanisms of propagation of radio communication. Radio communication deals along with electronic radiation of electromagnetic energy from one point to other by the
Firewalls While getting one firewall for the company's Intranet it should be well known that firewalls come in both hardware and software forms, and that even though all firew
The address bus is unidirectional due to the address information is always given by the Micro Processor to address a memory location of an input or output devices.
The decimal equivalent of Binary number 11010 is ? Ans. 11010 = 1 X 2 4 + 1 X 2 3 + 0 X 2 2 + 1 X 2 1 = 26.
C provides a wide range of variable types. Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Explanation Arrays in many programming-languages generally show a fixed list of values (e.g. a list of lastnames). Though within SQABasic the size for an array can either be fix
Define the difference between static RAM and dynamic RAM? The RAM family comprises two important memory devices that are static RAM (SRAM) and dynamic RAM (DRAM). The main diff
Height of a tree The length of the longest path from root to any node is called as the height of the tree.
Define Linear Probing Linear Probing: The easiest way to resolve a collision is to begin with the hash address and do a sequential search by the table for an empty location.
what is opcode for addition and subtraction
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