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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.
When should you stop testing? It is quite complex to determine as many modern software applications are so complex and run in like an interdependent environment that complete t
What are the steps comprised in authentication? Steps in Authentication: The control over the access of the resources within the repository is exercised in two steps tha
Q. Example on hamming error correcting code? For illustration a 4-bit matching word can stand for 2 4 =16 values that range from 0 to 15 as: 0000, 0001, 0010, 0011, 0100, 01
Problem Solving In Parallel Introduction to Parallel Computing This section examines how a particular task can be broken into minor subtasks and how subtasks can be answer i
Explain Formats supported in Linux for executable programs. Linux supports two formats for executable programs: a. Out-binary format b. ELF - dynamic libraries
Name and explain the popular techniques to identify free memory areas as a result of allocation and de-allocations in a heap. Two well-liked techniques to identify free memory
Single Instruction and Single Data stream (SISD) In this organisation, sequential implementation of instructions is executed by one CPU having a single processing element (PE
Some pure object oriented languages are Smalltalk, Eiffel, Java, Sather.
Multithreaded Architecture: It is clear now that if we give many contexts to multiple threads, then processors with multiple contexts are known as multithreaded systems. These sys
What is application software? Give example. Application programs are usually written in a high level programming language, in which the programmer states mathematical or text p
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