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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.
Define the translator which perform macro expansion is known as a Macro pre-processor is the translator which perform macro expansion
Enumerate in detail about Image Scanners Drawings, graphs, colour and black-and-white photos, or text can be stored for computer processing with an image scanner by passing an
Q. Changing the System Prompt? When you change the directory, you would like to keep track of it. The best way to do this is by displaying the name of the current directory alo
Depth First Search - artificial intelligence: Depth first search is very similar to breadth first, except for that the things are added to the top of this agenda rather than o
Explain how presentation layer helps in establishing and processing data in End to End layers. The idea of the presentation layer is to stand for information to the communicati
Q. If a plane is in the air also there is a fly flying inside the plane does the plane get heavier when the fly lands? Answer:- It is true that a fly puts weight on a plan
Explain the Structure of a C Program? Each C program consists of one or more functions one of the which must be main(). A function name is forever followed by a pair of parenth
Can we create a gui status in a program from the object browser? Yes. You can make a GUI STATUS in a program using SET PF-STATUS.
Disadvantages of file processing system
Q. What do you mean by Mouse Protocols? Mouse protocol is the digital code to that signal from the mouse gets converted. There are four main protocols: Microsoft, Mouse Systems
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