![]() When we are well, they can entertain us with electronic games and joy rides. When we are sick, they may monitor and regulate our blood pressure and heart beats. When we fly, they schedule and monitor the takeoff and landing of our plane, make it fly, maintain its flight path, and keep it out of harm’s way. When we drive, they control the engine and brakes of our car and regulate traffic lights. Every day these systems provide us with important services. Examples of real-time systems include digital control, command and control, signal processing, and telecommunication systems. Rather than pausing here to define the term precisely, which we will do in Chapter 2, let us just say for now that a real-time system is required to complete its work and deliver its services on a timely basis. ![]() chap1 page 1 C H A P T E R 1 Typical Real-Time Applications From its title, you can see that this book is about real-time (computing, communication, and information) systems.
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