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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.
What are the Barcode readers These collect data from printed barcodes and allow automatic stock control in, for illustration, supermarkets.
Q. Convert the following BINARY numbers into HEXADECIMAL, double check by converting the result HEXADECIMAL to BINARY. a) 1101.0110 b) 1011.11010 c) 11110.01011
First-Order Models: Here if we proposed first-order logic as a good knowledge representation language than propositional logic is just because there is more expressive than we
explain about cloud computing
Q. Show Advantages and Disadvantages of Shared Memory Programming? Advantages of Shared Memory Programming Data sharing between processes is both rapid and uniform bec
Differentiate between QA and testing. - Quality Assurance is more a stop thing, ensuring quality in the company and thus the product rather than just testing the product for so
What is binary adder? Binary adder is constructed with full adder circuit linked in cascade, with the output carry from one full adder linked to the input carry of next full ad
Construct a shift register from S-R flip-flops. Explain its working. Ans: S-R Flip-Flop Shift Register: Shift registers can be built through using SR flip-flops. Fig.(a)
Functional units of a computer system: Digital computer systems consist of 3 distinct units. These units are as follows: Central Processing unit Input unit and Output unit.
Explain in detail companding. Companding: It is the process of compressing and expanding. This includes compressing the signal at the transmitter and expanding this at the re
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