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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.
Write Hit Policies: Write through o Update next level on every write o Cache is always clean o A lots of traffic to next level (mostly write) Write
Explain the characteristics and utilities available into java that makes it appropriate for developing e-commerce applications. Following are the characteristics and utilities
Explain the working of Interpreter? The Interpreter is a program that executes instructions written in a high-level language. There are two manners to run programs written in a
Question: (a) What are the main challenges for Mobile Computing? (b) What is the ISM band and what is particular about this frequency band? Name two wireless technologies
Q. Explain how does CPU perform Read and Write operation on peripheral device taking suitable example in case of Asynchronous Technique. Differentiate Memory mapped and Isolated
Hi I study master of computer science I have assignment for subject statical natural language processing . I need solved due date on 6 May2014 at 11 pm Australia time I need yo
What is a microinstruction? Each word in control memory having within it a microinstruction. The microinstruction specifies one or more micro-operations for the system. A seq
What is Indexed addressing The location of data is calculated as sum of an address specified by one of previous methods, and value of an index register. This allows an array of
Which is more efficient, a switch statement or an if else chain? Ans) The differences, if any, are likely to be small. The switch statement was designed to be efficiently impl
Suppose that your team is then asked to expand the system. The publisher now wishes to make other computer science publications. As a team member, you are asked to make a class tha
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