What is a Pushdown Automaton (PDA)?A finite state machine with a finite amount of memoryB) A finite state machine with an infinite amount of memoryC) A machine used for controlling industrial processesD) A type of computer programming language
Question
What is a Pushdown Automaton (PDA)?A finite state machine with a finite amount of memoryB) A finite state machine with an infinite amount of memoryC) A machine used for controlling industrial processesD) A type of computer programming language
Solution 1
A Pushdown Automaton (PDA) is B) A finite state machine with an infinite amount of memory.
A PDA is a type of automaton that employs a stack to process the input. The stack provides the PDA with an infinite amount of memory, as it can theoretically grow without any bounds. The PDA uses this memory to remember information about the input it has processed so far. This makes PDAs more powerful than finite state machines, which have a fixed amount of memory.
Solution 2
A Pushdown Automaton (PDA) is B) A finite state machine with an infinite amount of memory. It is a type of automaton that employs a stack to process context-free languages. The stack memory allows the automaton to remember an arbitrary amount of information, hence the term "infinite memory".
Similar Questions
What is a Pushdown Automaton (PDA)?
Which of the following is a component of a Pushdown Automaton (PDA)?A) QueueB) StackC) TapeD) Register
Consider the PDA with only transitions (q0, a, e) -> (q0, e) for each symbol a in the input alphabet. q0 is an accepting state. i.e., from the initial state, it consumes one input symbol, does no stack operations and stays in the same state. What is the language decided by this PDA?1 pointEmpty set{ e }Sigma*This is an invalid PDA.
The equivalence between Pushdown Automata (PDA) and Context-Free Grammars (CFG) is defined by:a.PDA-CFG Equivalenceb.CFG-PDA Equivalencec.Equivalence Theoremd.Automata-Grammar Correspondence
PDA is more powerful thanAll of theseFinite automataTuring machineMulti tape Turing machine
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