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Q. Explain Execution-modes of a multiprocessor?
Execution-modes of a multiprocessor: Several modes of multiprocessing comprise parallel execution of programs at (i) Fine Grain Level (Process Level), (ii) Medium Grain Level (Task Level), (iii) Coarse Grain Level (Program Level).
For executing programs in these modes below conditions/actions are needed at OS level.
i) Context switching between multiple processes must be fast. In order to have context switching easy multiple sets must be present.
ii) The memory allocation to several processes must be context free and fast.
iii) Synchronization mechanism among multiple processes must be effective.
iv) OS must offer software tools for performance monitoring.
Different systems that can participate in grid computing as platform are: Windows 3.1, 95/98, NT, 2000 XP , DOS, OS/2, , supported by Intel ( x86); Mac OS A/UX (Unix) sup
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Consider a processor with a 4-stage pipeline. Each time a conditional branch is encountered, the pipeline must be flushed (3 partially completed instructions are lost). Determine
Q. Drawback of indirect addressing? • Drawback of this scheme is that it needs two memory references to fetch actual operand. First memory reference is to fetch the actual addr
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Handshake control of data transfer during an input operation: . Handshake control of data transfer during an output operation o Interface to CPU and Memory o
The bandwidth requirement of a telephone channel is (A) 3 KHz (B) 15 KHz (C) 5 KHz (D) 25 KH
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explain succession planning and strategies for harvesting and ending the venture
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