# GATE CS 2020 Syllabus

### Syllabus for General Aptitude (GA):

**Verbal Ability:**English grammar, sentence completion, verbal analogies, word groups, instructions, critical reasoning and verbal deduction.**Numerical Ability:**Numerical computation, numerical estimation, numerical reasoning and data interpretation.

### Computer Science and Information Technology (CS):

**Section-1: Engineering Mathematics:****Discrete Mathematics:**

Propositional and first order logic. Sets, relations, functions, partial orders and lattices. Groups. Graphs: connectivity, matching, coloring.**Combinatorics:**

counting, recurrence relations, generating functions.**Linear Algebra:**

Matrices, determinants, system of linear equations, eigenvalues and eigenvectors, LU decomposition.**Calculus:**

Limits, continuity and differentiability. Maxima and minima. Mean value theorem. Integration.**Probability:**

Random variables. Uniform, normal, exponential, poisson and binomial distributions. Mean, median, mode and standard deviation. Conditional probability and Bayes theorem.

**Computer Science and Information Technology:****Section 2: Digital Logic**

Boolean algebra. Combinational and sequential circuits. Minimization. Number representations and computer arithmetic (fixed and floating point).**Section 3: Computer Organization and Architecture**

Machine instructions and addressing modes. ALU, data-path and control unit. Instruction pipelining. Memory hierarchy: cache, main memory and secondary storage; I/O interface (interrupt and DMA mode).

**Section 4: Programming and Data Structures**

Programming in C. Recursion. Arrays, stacks, queues, linked lists, trees, binary search trees, binary heaps, graphs.**Section 5: Algorithms**

Searching, sorting, hashing. Asymptotic worst case time and space complexity. Algorithm design techniques: greedy, dynamic programming and divide-and-conquer. Graph search, minimum spanning trees, shortest paths.**Section 6: Theory of Computation**

Regular expressions and finite automata. Context-free grammars and push-down automata. Regular and context-free languages, pumping lemma. Turing machines and undecidability.**Section 7: Compiler Design**

Lexical analysis, parsing, syntax-directed translation. Runtime environments. Intermediate code generation.

**Section 8: Operating System**

Processes, threads, inter-process communication, concurrency and synchronization. Deadlock. CPU scheduling. Memory management and virtual memory. File systems.**Section 9: Databases**

ER-model. Relational model: relational algebra, tuple calculus, SQL. Integrity constraints, normal forms. File organization, indexing (e.g., B and B+ trees). Transactions and concurrency control.**Section 10: Computer Networks**

Concept of layering. LAN technologies (Ethernet). Flow and error control techniques, switching. IPv4/IPv6, routers and routing algorithms (distance vector, link state). TCP/UDP and sockets, congestion control. Application layer protocols (DNS, SMTP, POP, FTP, HTTP). Basics of Wi-Fi. Network security: authentication, basics of public key and private key cryptography, digital signatures and certificates, firewalls.

**Important Links:**

- GATE CS Notes 2020
- Last Minute Notes
- GATE CS Solved Papers
- Sudo GATE 2020
- GATE 2020 official syllabus
- GATE 2020 dates

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