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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.
. Nested Macro calls are expanded using the
Q. Palm OS provides no signifies of concurrent processing. Discuss three major complications that concurrent processing adds to an operating system. Answer: a. A meth
. cash flou.
List the four steps that are essential to run a program on a completely dedicated machine. a. Reserve machine time. b. Manually load program into memory. c. Load starting
What are the various page replacement algorithms used for page replacement? FIFO page replacement Optimal page replacement LRU page replacement LRU approximat
There is a process bloacked by a semaphore and no other process in the ready queue, can the blocked process get back to the ready queue without the semsignal() function?
FCFS (First Come, First Served) Perform operations in order requested No reordering of work queue No starvation every demand is serviced Poor performance
The principle is that of ordinary addition; however remember the highest number is 1. Calculate the following: 11001 + 11
Garbage collectors trade space for time. If we collect all the time (which requires a lot of processing time), the GC allocator will use the least memory possible. On the other han
Why is it not possible to enforce memory protection at compile time? Every process should be protected against unwanted interference by other process, whether intentional or
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