A real-time operating system.（RTOS）is an

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问题 A real-time operating system.（RTOS）is an operating system intended to serve（）application process data as it comes in,typically without buffering delays.A key（请作答此空）of a RTOS is the level of its consistency concerning the amount of time it takes to accept and complete an application’s task;the variability is jitter.A hard real-time operating system has（）jitter than a soft real-time operating system.The chief design goal is not high throughput,but rather a guarantee of a soft or hard performance category.A RTOS has an advanced algorithm for scheduling.（）flexibility enables a wider,computer-system orchestration of process priorities,but a real-time OS is more frequently dedicated to a narrow set of applications.Key factors in a real-time OS are minimal（）latency and minimal thread switching latency.A.characteristicB.programmingC.structureD.computer

选项 A.characteristic
B.programming
C.structure
D.computer

答案 A

解析

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中级嵌入式系统设计师

软件水平考试初中高级

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