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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.
Define Process Process is a program in execution; process execution should progress in sequential fashion. A process involves: a) Program counter b) Stack c) Data se
Representation in Prolog - Logic Programs: If we justimpose some additional constraints on first-order logic, so than we get to a representation language knowing as logic prog
Q. Explain about Instruction Register and Flags? The Instruction Register: It comprises the operation code (opcode) and addressing mode bits of the instruction. It assists in
What is PLI Programming Language Interface (PLI) of Verilog HDL is a mechanism to interface Verilog programs with programs written in C language. It also pro
Problem: (i) What are the main threats that an organisation holding sensitive data, such as Public Data, on computer storage must guard against? (ii) To protect such data,
Your professor wants you to fill a two-dimensional N by N matrix with some numbers by following a specific pattern. According to his explanation as in the figure below, you have to
Problem: A company requires a software application to calculate the weekly payment for its employees. The information about the employees (employees' data) is kept in a file.
Mainframe computer Mainframe computers are very large, often can fill an entire room. They can store a large amount of information, can execute many tasks at the same time, can
what is asymptotic notation
How many "true" terrorists are there in the US? I don't know, but let's suppose that there are 3000 out of a total population of, say, 3,000,000. That is, one person in 100,000 i
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