SRM Semester 3 subjects, syllabus units and exam plan — all 11 subjects mapped.
Semester 3 is where core CSE begins — DSA, COA and Operating Systems are placement-critical subjects. All technical interview questions trace back to Year 2 subjects. This is the most important semester for your career.
Your semester workspace
Save one semester of course names, credits and grades on the GPA page. Stored only in this browser, with no account or cloud backup. Clearing browser data removes it.
Revision guides are our study notes, not official exam papers. The site does not host previous-year papers.
Semester 3 subjects with their 2021-regulation unit checklists
Click any subject for its dedicated page: the unit checklist, the exam pattern, a preparation plan and where it sits in the semester.
Data Structures and Algorithm (DSA)
Arrays, linked lists, stacks, queues, trees, graphs, sorting and complexity analysis.
Computer Organization and Architecture (COA)
CPU architecture, instruction sets, memory hierarchy, I/O and pipelining.
Operating Systems (OS)
Processes, CPU scheduling, memory management, file systems and deadlocks.
Digital Logic Design (DLD)
Boolean algebra, combinational circuits, sequential circuits and logic families.
Transforms and Boundary Value Problems (TBVP)
Fourier series, Z-transforms, partial differential equations and boundary value problems.
Discrete Mathematics
Logic, set theory, relations, functions, graph theory and combinatorics.
Design Thinking and Methodology
Empathy, problem definition, ideation, prototyping and testing.
Social Engineering
Social systems theory, community engagement and participatory design.
Community Connect
Community needs assessment, service learning and social entrepreneurship.
Software Process
SDLC models, requirements engineering, software design, testing and Agile.
Bioprocess Engineering
Bioreactor kinetics, mass transfer, sterilization and scale-up principles.
CGPA importance in Semester 3
Semester 3 CGPA heavily influences placement shortlisting. Companies filter CVs by Year 2 performance. Target 8.5+ in DSA, OS and COA.
Semester 3 study tips
- DSA is the most-asked subject in every tech interview — go beyond syllabus
- OS process scheduling and memory management are standard interview topics
- COA pipelining and memory hierarchy concepts are asked in hardware roles
- Start LeetCode alongside DSA curriculum for placement preparation
Quick tools for Semester 3
PYQ guide
What a SEM, CT and model paper is, and how each one is marked.
Notes guide
How to organise unit-wise revision and what a usable one-page summary contains.
GPA Calculator
Estimate your Semester 3 SGPA and track cumulative CGPA progress.
Attendance Calculator
Check your 75% attendance status and plan safe absences.