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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.
Give the circuit of a TTL NAND gate and explain its operation in brief. Ans: Operation of TTL NAND Gate: Fig.(d) Demonstrates a TTL NAND gate with a totem pole output.
In order to support IA-32, the Itanium can switch into 32-bit mode with special jump escape instructions. The IA-32 instructions have been mapped to the Itanium's functional units.
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what do you mean by inter leasing.how it is display the frame having 525 scan lines
An HTML tag is a syntactical construct in the HTML language that abbreviates particular instructions to be implemented when the HTML script is loaded into a Web browser. It is like
Q. How are control signals achieve the particular operation? The control signals are applied directly as binary inputs to the logic gates of the logic circuits. All these input
What are the basic approaches to the design of subscriber access to Strowger systems? Describe them. A step by step switching system has three main parts as demonstrated in fig
I need help in my M.Sc project ,but im wondering how the cost is calculated
Q. Basic working of Semiconductors? Semiconductors are crystalline solid materials whose resistivities have values between those of conductors and insulators. Conductivity rang
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