Provide a design of the sequential circuit for the vending machine controller – one product sells for $0.35, and the machine takes only quarters (input Q) and dimes (input D) with an output signal I for product release and a few necessary output signals for change release (if there is change to return), for example, C5 for a 5-cent change, C15 for a 15-cent change, etc.. No other signals are used. A. Show the complete state transition table.
B. How many flip-flops are needed? Draw a block diagram of the circuit showing the key blocks, signals and wires.
C. How many K-maps are needed to derive the complete circuit? Why?

the correct answer is c. usually the language, and its emotional insight, that is how feelings and attitudes are expressed through language, are not quite present in film adaptations. despite that, it is a factor that a fan may either not notice or not care much about, especially compared to the other factors.

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