CS402
Gdb 1
Solution Spring 2022
Due date 01-09-2022
ANSWER
·
But
finite automata can be used to accept only regular languages. Pushdown
Automata is a finite automata with extra memory called stack which helps Pushdown automata to recognize Context Free
Languages. A Pushdown Automata (PDA) can be defined as: Q is the set of states.
Which of the following automata takes stack as auxiliary
storage? Explanation: Pushdown Automaton uses stack as an auxiliary storage for its
operations.
The finite automata or finite state machine is an
abstract machine that has five elements or tuples. It has a set of states and rules for moving from
one state to another but it depends upon the applied input symbol. Basically,
it is an abstract model of a digital computer.
·
Two-Stack
PDA is a computational model which is based on the generalization of Pushdown
Automata (PDA) and Non-deterministic Two-Stack PDA which is equivalent to a
deterministic Two-Stack PDA. The state of finite control. The input symbol that
reads. The top of the stack symbol on each of its stacks
·
A
read-only Turing machine or two-way deterministic finite-state automaton (2DFA)
is class of models of computability that behave like a standard
Turing machine and can move in both directions across input, except cannot
write to its input tape.
BEST OF LUCK