Table 1 shows that there are four jobs in the queue. Job 1 arived first, and 4 last. Their priority is given in shown in the middle column (1 is the lowest, and 4 is highest), and CPU time is shown in right column. For the following questions, please circle the correct answer from the candidate list (time unit: second). Table 1 Job # Priority CPU time (1) Using shortest-job-first scheduling algorithm, 1 30 turnaround time for Job 1 is 2 2 90 (a) 20 (b) 30 (c) 50 (d) 80 3 4 80 tumaround time for Job 2 is (a) 100 (b) 130 (c) (d) 250 3 50 170 tumaround time for Job 3 is (a) 100 (b) 130 (c) 150 (d) 160 tumaround time for Job 4 is (a) 30 (b) 50 (c) 60 (d) 80 average turnaround time is (a) 100 (b) 110 (c) 120 (d) 130 4,

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Dynamic Multithreading

An algorithm that executes a single instruction in a uniprocessor system is called a serial algorithm. In the case of a multiprocessor computer system, multiple instructions are executed in parallel. A multithreaded algorithm is an algorithm that enables multiple instances of the code to be executed concurrently.Multithreading is a concept that allows the CPU to execute threads independently while sharing similar resources. It is an important CPU feature that works on the process. Thread is a sequence of instructions that executes in parallel with other threads. Because of multithreading, multiple tasks can be performed within a single process.