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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.
What are null values? If the value of a field in a table is indeterminate or unknown, it is known as a null value.
Explain the program translation model The program translation model makes the execution gap through translating a program written in a programming language, termed as the sou
Q. Explain about Octal Numbers system? An octal system has 8 digits signified as 0,1,2,3,4,5,6,7. For finding equal decimal number of an octal number one has to find quantity o
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
Q. What do you mean by Decoders? Decoder transforms one kind of coded information to other form. A decoder has n inputs and one enable line (sort of selection line) and 2 n ou
Explain the term- Wireless Technologyand Broadband Wireless Technology (WiFi) and Broadband Most areas in the world now provide broadband instead of dial up for connectin
The primary aims/details of Load Sharing Facility Resource Management Software(LSFRMS) are good resource utilization by routing the task to the most appropriate system and good uti
Some famous projects on cluster computing are as follows: High Net Worth Project: (developed by: Bill McMillan, JISC NTI/65 - The HNW Project, University of Glasgow, The prim
Blue Sky events is an organisation that devices and runs large outdoor events. They have been commissioned to organise and run an event for four months over the summer period in a
Concept of Multithreading: This problem rises in design of large scale multiprocessors like MPP. So a solution for optimizing this latency must be acquired at. The idea of Mul
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