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Core GATE CSE Subjects 18 topics Moderate

Theory of Computation

GATE CSE Theory of Computation — regular languages, CFGs, pumping lemmas, Turing machines, and decidability.

Learning outcomes

  • Classify regular, CFL, CSL, and RE languages
  • Convert among DFA, NFA, and regex at exam speed
  • Use pumping lemma ideas for MCQs
  • Answer basic decidability questions

Overview

TOC (Theory of Computation) is automata, grammars, and computability. GATE asks identification and “which language is regular/CFL/decidable”.

Draw machines and apply closure properties more than writing long proofs.

Pair this subject with Compiler Design — lexical analysis and parsing reuse automata ideas.

Revision map

  1. 1. Regular languages
  2. 2. CFG & PDA
  3. 3. Turing machines
  4. 4. Undecidability
  5. 5. Closure
  6. 6. PYQ drill

Related resources

Full programming courses are live. Use them for the coding side of GATE CSE while subject notes expand.