CSE/IT study material
Computer Science and Engineering / Information Technology
You sit GATE CS. Here are 12 subjects and 638 past questions from 10 GATE CS papers, with notes, formula sheets and practice. Free, no sign-up.
Subject-wise
Notes, formulas, practice and past questions for each subject.
Data Structures and Algorithms
84 solved questions from GATE CS papers
6 of 7 topics are in the GATE CS syllabus
Notes · formula sheet · 41 practice questions
Computer Organization and Architecture
57 solved questions from GATE CS papers
Notes · formula sheet · 26 practice questions
Computer Networks
52 solved questions from GATE CS papers
Notes · formula sheet · 37 practice questions
Operating Systems
52 solved questions from GATE CS papers
Notes · formula sheet · 36 practice questions
Engineering Mathematics
50 solved questions from GATE CS papers
3 of 7 topics are in the GATE CS syllabus
Notes · formula sheet · 43 practice questions
Theory of Computation
44 solved questions from GATE CS papers
Notes · formula sheet · 26 practice questions
Database Management and Warehousing
46 solved questions from GATE CS papers
6 of 8 topics are in the GATE CS syllabus
Notes · formula sheet · 50 practice questions
Discrete Mathematics
45 solved questions from GATE CS papers
Notes · formula sheet · 34 practice questions
Digital Electronics
41 solved questions from GATE CS papers
4 of 7 topics are in the GATE CS syllabus
Notes · formula sheet · 40 practice questions
Compiler Design
35 solved questions from GATE CS papers
Notes · formula sheet · 31 practice questions
Programming in C
34 solved questions from GATE CS papers
Notes · formula sheet · 23 practice questions
General Aptitude
85 solved questions from GATE CS papers
Notes · formula sheet · 43 practice questions
Sitting GATE DA as your second paper? Its subjects are under DS & AI
Exam-wise
GATE
Solved papers
GATE CS papers, question by question2026 Set 1, 2026 Set 2, 2025 Set 1, 2025 Set 2, 2024 Set 1, 2024 Set 2, 2023, 2022, 2020, 2018
Official papers and syllabus
After the result
Which papers you can sit
GATE 2027 lets you pair CS with DA and EC, among others. The brochure marks this list tentative.
Other exams
- ISRO Scientist/Engineer 2026
Computer Science post: Computer Science, Information Technology, Information Science and Engineering.
Applications closed 16 Sep 2026
- DRDO Scientist 'B' (Advt. No. 156, 2025)
GATE CS for the Computer Science post; Information Technology was among the names listed.
Advt. 156 closed 8 Aug 2025
- BARC OCES/DGFS-2026
Computer Science post (code 26); Information Technology degrees were not eligible.
Last date 21 Jan 2026 (tentative)
- PSU recruitment
Which PSUs select on a GATE score and which run their own test
ISRO past papers
- ISRO Scientist/Engineer Computer Science 2025, question by question
95 questions with ISRO's answer key. Written test of 26 October 2025.
- ISRO Scientist/Engineer Computer Science 2023, question by question
95 questions with ISRO's answer key. Written test of 7 January 2024.
Core jobs
- Hiring routes and an internship from TCS, HCLTech, Capgemini, Cognizant and Tech Mahindra Listed 19 October 2026
- What Atlassian, Microsoft and Zoho publish for students and graduates Listed 19 October 2026
- What Goldman Sachs, Deutsche Bank and American Express publish for students Listed 19 Oct 2026
- What Genpact, ZS, Microsoft Research India and Wadhwani AI publish for students Listed 19 October 2026
From the past papers
What a wrong answer costs in GATE, by question type
6 min read
GATE's most repeated topics, paper by paper
8 min read
IISc's GATE cut-offs and offer scores, 2024–2026
9 min read
Recurring slips in GATE questions, by subject
58 min read
Where GATE CS's marks have come from
6 min read
Which PSU and government notices use a GATE score
7 min read