GATE Computer Science Syllabus 2027: Subject-Wise Topics & Important Points

• Updated on 5 Nov, 2026 by Himanshu Singh

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Students preparing for the Computer Science and Information Technology (CS) paper should understand the subjects and topics included in the GATE Syllabus. The syllabus covers fundamental concepts of computer science, including programming, data structures, algorithms, computer architecture, operating systems, databases and computer networks. IIT Madras is the organising institute for GATE 2027.

The GATE Computer Science syllabus is divided into 10 sections, starting with Engineering Mathematics and Digital Logic and covering core subjects such as Theory of Computation, Compiler Design and Operating Systems. Candidates can check the complete subject-wise topics below to understand the syllabus and plan their preparation accordingly.

Table of Contents

GATE Computer Science Subject-Wise Topics
GATE Computer Science Important Points
GATE Computer Science Syllabus 2027 FAQs

GATE Computer Science Subject-Wise Topics

The GATE Computer Science and Information Technology syllabus includes 10 subjects. Each section covers different concepts related to computing, programming and computer systems. Candidates can refer to the following tables for the detailed topics prescribed under each subject.

1. Engineering Mathematics

Engineering Mathematics is the first section of the GATE CS syllabus. It covers mathematical concepts from Discrete Mathematics, Linear Algebra, Calculus, Probability and Statistics.

Topics

Detailed Syllabus

Discrete Mathematics

Propositional and first-order logic; sets, relations, functions, partial orders and lattices; monoids and groups; graphs, including connectivity, matching and colouring; combinatorics, including counting, recurrence relations and generating functions.

Linear Algebra

Matrices, determinants, systems of linear equations, eigenvalues and eigenvectors, and LU decomposition.

Calculus

Limits, continuity and differentiability, maxima and minima, mean value theorem, and integration.

Probability and Statistics

Random variables; uniform, normal, exponential, Poisson and binomial distributions; mean, median, mode and standard deviation; conditional probability and Bayes' theorem.

Source: The image has been sourced from the official GATE CS syllabus.

2. Digital Logic

Digital Logic focuses on Boolean algebra, logic minimisation and the design of digital circuits. Candidates should prepare the following topics:

Topics

Detailed Syllabus

Boolean Algebra and Minimisation

Algebraic technique, Karnaugh map and tabular method.

Circuit Design

Design of combinational and sequential circuits.

Number Representation and Arithmetic

Fixed-point and floating-point number representation and arithmetic.

3. Computer Organization and Architecture

Computer Organization and Architecture covers the structure and functioning of computer systems. It includes processor design, memory organisation, input-output interfaces and instruction execution.

Topics

Detailed Syllabus

Instruction Set

Instruction set and addressing modes.

Arithmetic and Logic Unit

Design of the arithmetic and logic unit (ALU).

Control Unit

Design of hardwired and microprogrammed control units.

Memory Organisation

Memory interfacing and hierarchy, memory performance and cache memory mapping.

Input/Output Interface

Interrupts and Direct Memory Access (DMA).

Instruction Pipelining

Instruction pipelining and pipeline hazards.

4. Programming and Data Structures

This section covers C programming, recursion and different types of data structures. Candidates should understand the concepts and working of the following:

Topics

Detailed Syllabus

Programming

Programming in C.

Recursion

Recursion.

Linear Data Structures

Arrays, stacks, queues and linked lists.

Non-Linear Data Structures

Trees, binary search trees, binary heaps and graphs.

5. Algorithms

The Algorithms section evaluates candidates' understanding of problem-solving techniques, complexity analysis and graph algorithms. The syllabus includes:

Topics

Detailed Syllabus

Searching and Sorting

Searching, sorting and hashing.

Complexity Analysis

Asymptotic worst-case time and space complexity.

Algorithm Design Techniques

Greedy algorithms, dynamic programming and divide-and-conquer.

Graph Algorithms

Graph traversals, minimum spanning trees and shortest paths.

6. Theory of Computation

Theory of Computation focuses on formal languages, automata and computational models. Candidates should prepare the following topics:

Topics

Detailed Syllabus

Regular Languages and Automata

Regular expressions and finite automata.

Context-Free Languages

Context-free grammars and push-down automata.

Language Properties

Regular and context-free languages, and pumping lemma.

Computability

Turing machines and undecidability.

7. Compiler Design

Compiler Design covers the different stages involved in translating source code into machine-level instructions. The section includes lexical analysis, parsing, code generation and optimisation.

Topics

Detailed Syllabus

Lexical and Syntax Analysis

Lexical analysis and parsing.

Syntax-Directed Translation

Syntax-directed translation.

Runtime Environment

Runtime environments.

Intermediate Code Generation

Intermediate code generation.

Code Optimisation

Local optimisation.

Data Flow Analysis

Constant propagation, liveness analysis and common subexpression elimination.

8. Operating System

The Operating System section covers process management, concurrency, scheduling, memory management and file systems. The detailed topics are given below:

Topics

Detailed Syllabus

Operating System Interface

System calls.

Process Management

Processes, threads and inter-process communication.

Concurrency and Synchronisation

Concurrency and synchronisation.

Deadlock

Deadlock.

Scheduling

CPU and I/O scheduling.

Memory Management

Memory management and virtual memory.

File Management

File systems.

9. Databases

The Databases section focuses on database models, relational concepts, query languages, indexing and transaction management.

Topics

Detailed Syllabus

Database Modelling

Entity-Relationship (ER) model.

Relational Model

Relational algebra, tuple calculus and SQL.

Integrity and Normalisation

Integrity constraints and normal forms.

File Organisation and Indexing

File organisation and indexing, including B and B+ trees.

Transaction Management

Transactions and concurrency control.

10. Computer Networks

Computer Networks covers network architecture, switching, routing and communication protocols. Candidates should prepare the following topics:

Topics

Detailed Syllabus

Network Principles

Principles of layering.

Switching

Basics of circuit switching, packet switching and virtual circuit switching.

Performance Metrics

Network performance metrics.

Data Link Layer

Error detection, Medium Access Control (MAC) and Ethernet.

Routing

Distance vector and link-state routing.

IPv4

Fragmentation, CIDR notation and Network Address Translation (NAT).

TCP

Flow control, congestion control and socket API.

Application Layer

Domain Name System (DNS) and Hypertext Transfer Protocol (HTTP).

GATE Computer Science Important Points

The GATE syllabus includes 10 subjects covering the theoretical and practical foundations of Computer Science and Information Technology. Candidates should review the complete syllabus before beginning their preparation and make sure they cover all the prescribed topics.

Some important points to consider while studying the syllabus are:

Engineering Mathematics: Covers Discrete Mathematics, Linear Algebra, Calculus, Probability and Statistics.
Programming and Data Structures: Includes C programming, recursion and different linear and non-linear data structures.
Algorithms: Covers complexity analysis, searching, sorting, hashing and graph algorithms.
Core Computer Science Subjects: Includes Theory of Computation, Compiler Design, Operating Systems, Databases and Computer Networks.
Computer Systems: Covers Digital Logic and Computer Organization and Architecture.

Candidates should use the official GATE 2027 syllabus as their primary reference while selecting study material and preparing a subject-wise study plan.

GATE Computer Science Syllabus 2027 FAQs

How many subjects are included in the GATE Computer Science syllabus 2027?

The GATE Computer Science syllabus 2027 includes 10 subjects: Engineering Mathematics, Digital Logic, Computer Organization and Architecture, Programming and Data Structures, Algorithms, Theory of Computation, Compiler Design, Operating System, Databases and Computer Networks.

Who is the organising institute for GATE 2027?

IIT Madras is the organising institute for GATE 2027.

What is the paper code for GATE Computer Science and Information Technology?

The paper code for Computer Science and Information Technology in GATE is CS.

What topics are covered under Engineering Mathematics in GATE CS?

Engineering Mathematics includes Discrete Mathematics, Linear Algebra, Calculus, Probability and Statistics.

Is C programming included in the GATE Computer Science syllabus?

Yes, Programming in C is included under the Programming and Data Structures section.

Does the GATE CS syllabus include Data Structures and Algorithms?

Yes, the syllabus includes arrays, stacks, queues, linked lists, trees, binary search trees, binary heaps and graphs. It also covers searching, sorting, hashing, algorithm design techniques and graph algorithms.

Is Operating System included in the GATE CS syllabus 2027?

Yes, Operating System is one of the 10 subjects. It covers system calls, processes, threads, inter-process communication, concurrency, deadlocks, scheduling, memory management, virtual memory and file systems.

Does the GATE Computer Science syllabus include DBMS?

Yes, the Databases section covers the ER model, relational algebra, tuple calculus, SQL, integrity constraints, normal forms, indexing, transactions and concurrency control.

What topics are covered under Computer Networks in GATE CS?

Computer Networks includes network layering, switching, performance metrics, the data link layer, routing, IPv4, TCP, DNS and HTTP.

Is Compiler Design included in the GATE CS syllabus 2027?

Yes, Compiler Design is included in the syllabus. It covers lexical analysis, parsing, syntax-directed translation, runtime environments, intermediate code generation, local optimisation and data flow analysis.

Where can I download the GATE Computer Science syllabus 2027 PDF?

Candidates can visit the official GATE 2027 website, managed by IIT Madras, to access the Computer Science and Information Technology syllabus PDF.

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