Real-time systemAsystem in which responsetime is crucial given thenature of the applicationdomainResponse timeThetime delay betweenreceiving a stimulus andproducing a responseLogical addressAreference to a storedvalue relative to theprogram making thereferencePhysical addressAnactual address in themain memory device326Chapter 10Operating Systemscommunication has on operating systems. Such communication is yetanother resource that an OS must support.One final aspect of operating systems is the need to support real-timesystems. A real-time systemis one that must provide a guaranteedminimum response timeto the user. That is, the delay between receiving astimulus and producing a response must be carefully controlled. Real-timeresponses are crucial in software that, for example, controls a robot, or anuclear reactor, or a missile. Though all operating systems acknowledgethe importance of response time, a real-time operating system strives tooptimize it.
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Virtual memory, main memory, Real-time operating system