Course Title: Theory of Automata (CS402)
Lecture No. 1: Languages
	Introduction	Alphabets	Strings	Words
	Length of Strings	Reverse of a String	Defining Languages	PALINDROME
	Summary
Introduction
What does automata mean? It is the plural of automaton, and it means  “something that works automatically” Introduction to languages There are two types of languages             Formal Languages (Syntactic languages)             Informal Languages (Semantic languages)
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