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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.
Q. What is System Prompt? On loading (or Switching to) DOS, the screen displays C :\>, C>, A :\> or a similar message. The message displayed by DOS is called DOS Prompt or Sys
Q. Show the Importance of RISC Processors? Reduced Instruction Set Computers recognize a comparatively limited number of instructions. One benefit of a reduced instruction set
Higher Order Predicate Logic : In the very first order predicate logic, we are only allowed to quantify over objects. If we are considered to allow ourselves to quantify over
Q. What you mean by organizational effectiveness? Organizational effectiveness is measured in terms of productivity, structural flexibility, Employee involvement and Job satisf
Canvas is a component. ScrollPanel is a container. Canvas is a rectangular area where the application can draw or trap input events. ScrollPane executes horizontal and vertical scr
What is the use of urgent pointer in TCP segment? For accommodation out of band signaling, TCP permits the sender to identify data as urgent, implies that the receiving program
The following branch prediction algorithms are suggested: 1) Guess that the branch will be taken if the previous one was taken; predict not taken otherwise. 2) Guess that the
Now add layout cells into which you will add text about travel locations. 1. In Objects panel, click the Draw Layout Cell icon and move the pointer to layout table you just dre
want to know about latest work and research papers on internet data synchronization
What is an interrupt? An interrupt is an event that causes the implementation of one program to be suspended and another program to be implemented.
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