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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 do you mean by memory mapped I/O? In Memory mapped I/O, there is no particular input or output instructions. The CPU can manipulate I/O data residing in interface register
What are the requirements a dialog program must fulfill? A dialog program must fulfil the following requirements A user friendly user interface. - Format and consistency
Complete Binary tree A complete binary tree can be described as a binary tree whose non leaf nodes have nonempty left and right sub tree and all leaves are at the similar level
Number systems Consider a decimal number: 7654.32 Short hand for: 7 * 103 + 6*102 + 5* 101 + 4*100 + 3*10 -1 + 2*10 -2 Likewise
What are the ways to truncate guard bits? 1. Chopping 2. Von Neumann rounding 3. Rounding procedure.
Virtual memory can be implemented with ? With Segmentation and Paging Virtual memory can be implemented.
What are local objects? Local objects (Dev class$TMP) are independent of correction & transport system
What is the means of communications between R/3 and external applications? The means of communication among R/2,R/3 and external applications is by the CPI-C handler or SAP Gat
In Java System.out is an object of type? In Java System.out is an object of form Print Stream.
Make a spreadsheet that has on every line an integer student identification number followed by 3 quiz grades for that student. Go though that information from the spreadsheet into
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