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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.
The A/D converter whose conversion time is independent of the number of bits is ? Ans. Parallel conversion is the A/D converter whose conversion time is independent of the Numbe
Electronic typewriter : An electronic typewriter has a 'memory' or 'electronic brain' which enables it to recall the whole document at a time and type it automatically at the pres
Question: (a) Identify the four main enhancements brought along by TKIP on WPA to solve the problems in WEP. (b) The term WarDriving has been frequently used while talking
advantages and disadvantages of layered architecture in computer network.
write a program to copt values of object without using copy constructor or = operator
Hardware interrupts: Hardware interrupts -from I/O devices, processor, memory Software interrupts-produced by a program. Direct Memory Access (DMA) Interrupt or Poll
A component has the time to failure distribution that is modelled as the Weibull distribution with shape parameter 3 and scale parameter of 36 months. This component is planned to
Suppressing the number signs (+/-) is carried out using the addition NO-SIGNS to the Write statement. Statement is false.
what is process management ?
Q. What do you mean by File? In computer vocabulary, file is a collection of text or data stored on a storage device, such as a Floppy Disk or Hard Disk. If you a fresher to c
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