GATE CSE 2026
Important Subjects & Topics for Computer Science Engineering
Programming & Data Structures
- Arrays, Stacks, Queues
- Linked Lists (Singly, Doubly, Circular)
- Trees (Binary, BST, AVL, Heaps)
- Graphs (BFS, DFS, Representations)
- Hashing and Hash Tables
- Pointers and Dynamic Memory
Algorithms
- Asymptotic Analysis (Big-O, Theta, Omega)
- Sorting Algorithms (Quick, Merge, Heap)
- Divide and Conquer Strategies
- Greedy Algorithms
- Dynamic Programming
- Graph Algorithms (Shortest Path, MST)
Database Management Systems
- ER Model and Relational Model
- SQL Queries and Normalization
- File Organization and Indexing
- Transaction and Concurrency Control
- ACID Properties
Operating Systems
- Process Management and Scheduling
- Synchronization and Deadlocks
- Memory Management (Paging, Segmentation)
- File Systems and I/O Management
- Virtual Memory and Page Replacement
Computer Networks
- OSI and TCP/IP Models
- Network Layer (IP, Routing Algorithms)
- Transport Layer (TCP, UDP)
- Application Layer Protocols (HTTP, DNS, SMTP)
- Network Security Basics
Computer Organization
- Machine Instructions and Addressing Modes
- ALU, Data-path and Control Unit
- Instruction Pipelining
- Memory Hierarchy (Cache, Main Memory)
- I/O Interface
Theory of Computation
- Regular Expressions and Finite Automata
- Context-Free Grammars and Pushdown Automata
- Turing Machines and Undecidability
- Chomsky Hierarchy
Engineering Mathematics
- Discrete Mathematics
- Linear Algebra
- Probability and Statistics
- Calculus
