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In a multicomputer system the computational load amid different processors should be balanced. To pass information between different nodes message passing technique is used. The programming environment of a multicomputer comprises a host runtime system and resident operating system known as Kernel in all node computers. The host system offers uniform communication amid processes with no intervention of nodes, network connection and host workstation. Host processes are located outsides the nodes. The host environment for hypercube computer at Caltech is UNIX processor and employs UNIX in addition to language processor utilities to correspond with node processes. The Kernel is independently located in every node computer which supports multiprogramming with an address space confined by local memory. Numerous node processes can be created at every node. All node processes execute simultaneously in various physical nodes or interleaved by multiprogramming within same node. Node processes communicate with one another by transmitting or receiving messages.
Paging Unit Paging mechanism functions with 4K - byte memory pages or with a new extension available to Pentium with 4M byte-memory pages. In the Pentium, with the new 4M-byt
The data bus is Bi-directional because the similar bus is used for transfer of data among Micro Processor and memory or input / output devices in both the direction.
Illustrate about 8259 8259A adds 8 vectored priority encoded interrupts to the microprocessor. We can expand it to 64 interrupt requests by using one master 8259A and 8 slave
Explain with the help of examples FIFO algorithms? FIFO policy: This policy easy removes pages in the order they arrived into the main memory. By using this policy we easily
Can you give an example of when it would be appropriate to use a web service as opposed to a non-serviced .NET component? A web service has the following characteristics: 1
Cache-Only Memory Access Model (COMA) As we have considered earlier, shared memory multiprocessor systems can use cache memories with each processor for decreasing the execution
Prove the following Boolean identities using the laws of Boolean algebra (A + B)(A + C) = A + BC Ans. (A+B)(A+C)=A+BC LHS AA+AC+AB+BC=A+AC+AB+BC OR A((C+1)+A(B+1))+BC
Instruction Pipelines As discussed previous, the stream of instructions in the instruction implementation cycle, can be realized through a pipeline where overlapped implementat
Input a list of positive numbers (terminated by 0) into an array. Find the largest number in the array, and into the result. Use a subprogram to input the numbers, a function to fi
Software QA includes the whole software development PROCESS - improving and monitoring the process, making sure that any agreed-upon standards and processes are followed, and ensur
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