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Elucidate the purpose of GDTR. If the microprocessor sends linear address 00200000H to paging mechanism, which paging directory entry and which page table entry is accessed?
GDTR (global descriptor table register) and IDTR (interrupt descriptor table register) comprise the base addresses of descriptor table and its limit. Limit of each descriptor table is 16 bits as maximum table length is 64 Kbytes. When the protected mode operation is desired, address of the global descriptor table and its limit are loaded into the GDTR.
For linear address 00000000H - 003FFFFFH, first entry of the page directory is accessed. Every page directory entry signifies or repages a 4-Mbyte section of the memory system. Contents of the page directory select a page table which is indexed by the next 10 bits of the linear address. This means that address 00000000H - 00000FFFH selects page directory entry 0 and page table entry 0.
Explain the techniques used for protection of user files. This is easier to protect against accidental than malicious misuse. Protection of user files implies that file owne
How is multidimensional arrays defined in terms of an array of pointer? An element in a multidimensional array like two-dimensional array can be shown by pointer expression as
Q. Explain Assembly program execution? An assembly program is written according to a strict set of rules. A word processor or editor is used for keying an assembly program in t
Q. Principles for developing successful system? (1) Both developers and customers must be involved for accuracy in the information. (2) A problem solving approach must be
What is the benefit of MITRE''s evolutionary approach to KM?
Test requirements are definite in the Requirement Hierarchy in TestManager. The requirements hierarchy is a graphical outline of requirements and nested child requirements. Req
Q. Convert the following BINARY numbers into OCTAL, double check by converting the result OCTAL to BINARY. a) 111.111 b) 10110111 c) 0.11111
In a time multiplexed space switching system, one speech sample appears every? One speech sample shows every 125 micro sec, in a time multiplexed space switching system.
What is write miss? During the write operation if the addressed word is not in cache then said to be write miss.
explan volage triper and voltage quadrupler.
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