Discuss the many real–world systems which are modeled as FSMs (Finite State Machines) (ex. Vending machines,...

Discuss the many real–world systems which are modeled as FSMs (Finite State Machines) (ex. Vending machines, ATMs, Online purchase systems, etc.)

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Expert Solution

In a Finite State Machine the circuit’s output is defined in a different set of states i.e. each output is a state. A State Register to hold the state of the machine and a next state logic to decode the next state. An output register defines the output of the machine. In FSM based machines the hardware gets reduced as in this the whole algorithm can be explained in one process.

Two types of State machines are:

MEALY Machine: In this machine model, the output depends on the present state as well as on the input.

MOORE Machine: In Moore machine model the output only depends on the present state.

Finite state machines are an attractive candidate as a model of computation. We may view a simple ROM-based FSM as a programmable general-purpose (or at least multi-purpose) computation machine, in that its behavior may be modified simply by changing the string of bits stored in its ROM. Of course, any particular FSM implementation as a digital circuit necessarily fixes the number of inputs, outputs, and states as implementation constants, limiting the range of FSM behaviors that can be achieved by reprogramming its ROM.

By using finite state machines model so many machines are developed like ATM's, vending machines, Online purchase systems and there are so many robots which are widely used all over the world. These machines fulfills the requirements and its can't be done by humans also. They are very powerful in handling the workload and fullfilling the users requirements.

venereology answered 6 months ago

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