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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.
Determine the basic Machine language instructions Machine language instructions and data are in terms of 0s and 1s and are stored in the memory. It isn't possible to distinguis
Explain the Compiler - Computer Programming? The Compiler is a program that translates source code into object code. The compiler derives its name from the means it works looki
Q. Speed Up - metrics for performance evaluation? Speed up is ratio of time needed to execute a given program employing a specific algorithm on a machine with single processor
Q. Show the characteristic of cache memory? The essential characteristic of cache memory is its fast access time. So very little or no time should be wasted when searching for
Q. Define Interrupts in assembly language? An interrupt causes interruption of an ongoing program. A number of the common interrupts are: printer, monitor, keyboard, an error c
Using the memory map below; design an absolute decoding circuit. The technique is to spot the differences between the start and stop of each device. The Ram chip has the follow
What is SEGMENT - Assembler directives SEGMENT: This directive defines to assembler the start of a segment with name segment-name. Segment name must be unique and follows the
Q. What is Laser Printers? Laser Printers are page printers. For print quality they also face same addressability issues as DMP/InkJet Printers. Though some other methods are p
write a code to decode the string"i need 1000 bucks"
A three stage switching structure supports 100 inlets and 400 outlets. Find the number of cross points, and the number of primary and secondary switches used in the design. We
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