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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.
Benefits of implementing ERP
What is applying of an Open Source Systems? No licensing issues No initial cost Speed of Access Openness and Transparency
Define the term Intranet. Intranet: An Intranet is a type of information system that facilitates communication within the organizations among widely dispersed department
Explain Lexical substitution during macro expansion ? Lexical substitution is used to produce an assembly statement from a model statement. Model statements have 3 kinds of str
different locking techniques
Q. What is interpreter? An interpreter translates each high-level-language statement into its equivalent set of machine-language instructions, which are then executed right awa
Andrew, a 17 zear old university student decided to hold a post exams party for his friends. Andrew asked Kath, a family friend and the owner of 'Kath's Katerers' to supply food
Q. Write an interrupt routine to handle 'division by zero'? This file can be loaded just like a COM file though makes itself permanently resident until the system is running.
Discuss in detail the features, benefits and implementation of JIT inventory system. JIT - Just in Time inventory systems - meaning, origin, need for JIT, benefits, Use of JIT
Resolution of externally defined symbols is performed by Ans. By Linker resolution of externally defined symbols is performed.
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