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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.
SOLVE PUSH+DOOR=BELL AND GIVE+THEM=HELP
Distinguish between min terms and max terms. Ans Differentiate between Minterms and Maxterms: a. Each single term in standard Sum Of Products (SOP) form is termed as minterm
Describe the three mapping techniques used in cache memories with suitable Example. The cache memory is a fast memory that is inserted among the larger slower main memory and t
What are the Advantagesof fact finding - Analyst obtains reliable data - It's possible to see exactly what is being done - This is an inexpensive method in comparison o
Disadvantages of wireless technology - Range can be very limited - Possible interference from nearby electronic devices - Security issues (i.e. tapping illegally into
detail explanation
Handling Interrupts: Precise interrupts (sequential semantics) Complete instructions before the offending instructions o Force trap instruction into IF o
draw input and output charectoristics of BJT and justify CE configuration provides large current amplification
Electronic Data Interchange (EDI ) is used by companies for transactions that happen on regular basis to a pre-determined format. It is one of the electronic commerce technologies.
explain in RAID
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