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Q. Explain the Concept of Process?
A process is sequential program in execution. A process states the basic unit of computation for the computer. Components of process are:
1. Object Program
2. Data
3. Resources
4. Status of the process execution.
Object program i.e. code to be executed. Data is used for executing the program. While executing the program it may need some resources. Last component is used for verifying the status of process execution. A process can run to completion only when all requested resources have been allocated to the process. two or more processes can be executing the same program, each using their own resources and data.
mention the three problems that mat be caused by wrong initialization and placement of wait() and signal()operations in the use of semaphore
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how does DMA increase system concurrency
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Determine a critical section is a program segment Critical section is where shared resources are accessed
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SCAN o Go from the outside to the inside servicing requests and after that back from the outside to the inside servicing requests. o Replicate this over and over. o Diminish
explain how indefinite blocking or starvation occurs..
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