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Q. Define Wait protocol?
The wait protocol is used for resolving conflicts that arise due to some multiprocessors requiring same resource. There are 2 kinds of wait protocols: sleep-wait and busy-wait. In busy-wait protocol process stays in process context register that continually attempts for processor availability. In sleep-wait protocol wait protocol process is removed from processor and is kept in wait queue. The hardware complexity of this protocol is greater than busy-wait in multiprocessor system. If locks are used for synchronization subsequently busy-wait is used more than sleep-wait.
a. Activity diagram: Activity diagram is used for functional modelling. Captures the process flow. b. Sequence diagram : Sequence diagram is used for dynamic modeling.
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Draw and illustrate the block diagram of DMA controller. Also discuss the various modes in which DMAC works. Direct memory access (DMA) is a process in that an external device
Add 20 and (-15) using 2's complement ? Ans. Addition of 20 and (-15) by using 2's complement as (20) 10 = 1 0 1 0 0 (16
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types of internal conditioning with explanations and examples
Q Why we use addressing schemes? An operation code of an instruction tells the operation to be performed. This operation is executed on some data stored in memory or register.
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Explain the significance of init() and destroy( ) methods of an applet? Also explain two ways of invoking an applet. The init( ) method is utilized for fundamental initializati
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