Exercise 10.1 from [Priestley; 2004)) What state is the CD player specified in t

Question

Exercise 10.1 from [Priestley; 2004)) What state is the CD player specified in the below figure after the following sequences of events are detected? Assume that a CD is always present when tested for (a) Initialize, load (b) Initialize, load, play, stop (c) Initialize, load, play, pause, play (d) Initialize, play, stop, load (e) Initialize, load, pause, play Not Playing Busy entry find track start stop CD present ast track played Playing Closed no CD dol play track bad close play pause t last track apen pause stop load Paused Open off of

Explanation / Answer

After sequence of steps present state is given below based on the given diagram.

1.Initialize,load --- In open state(Not Playing Mode)
2.Initialize,load,play,stop ----In closed state(Not Playing Mode)
3.Initialize,load,play,pause,play ----In Playing state(Busy Mode)
4.Initialize,play,stop,load ------- In open state(Not Playing Mode)
5.Initialize,load,pause,play--------In playing state(Busy Mode)

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