हिंदी में: कंप्यूटर साइंस इंजीनियरिंग (CSE) के सभी मुख्य विषय एक जगह — आसान अंग्रेज़ी में, छात्रों के लिए।
Welcome to the CSE Knowledge Hub by Er Pradeep Gupta, a B.Tech Computer Science Engineering graduate. These notes explain the core subjects of a CSE degree in simple language — useful for semester exams, GATE preparation, placement interviews and anyone curious about how computers work.
Suggested learning path
1 · Foundations
Computer Fundamentals → Number Systems → Programming Basics (C, Python, Java)
2 · Core CS
Data Structures → Algorithms → Computer Organization & Architecture → Operating Systems
3 · Systems & theory
DBMS → Computer Networks → Theory of Computation → Compiler Design → Software Engineering
4 · Modern tech & career
Web Development → AI & ML → Cybersecurity → Cloud Computing → Career, Placement & GATE
All topics
Computer Fundamentals
What a computer is, how hardware and software work together, the input–process–output cycle, memory hierarchy and the ba…
Read topic →Number Systems
Binary, octal, decimal and hexadecimal number systems, how to convert between them, and how computers store negative num…
Read topic →Programming Basics (C, Python, Java)
Core programming concepts — variables, data types, conditions, loops, functions and OOP — explained side by side in C, P…
Read topic →Data Structures
Arrays, linked lists, stacks, queues, trees, heaps, hash tables and graphs — what each one is, how it works and when to…
Read topic →Algorithms
How to analyse algorithms with Big-O, plus searching, sorting, recursion, divide and conquer, greedy methods, dynamic pr…
Read topic →Database Management Systems (DBMS)
Databases, the relational model, keys, ER diagrams, SQL, normalization, transactions and ACID properties, indexing, and…
Read topic →Operating Systems
What an operating system does — processes and threads, CPU scheduling, synchronization, deadlocks, memory management, vi…
Read topic →Computer Networks
Network types and topologies, the OSI and TCP/IP models, IP addressing and subnetting, TCP vs UDP, routing, and key prot…
Read topic →Computer Organization & Architecture
How a processor really works — instruction cycle, registers, instruction formats and addressing modes, pipelining, cache…
Read topic →Software Engineering
The software development life cycle, process models from Waterfall to Agile and Scrum, requirements, UML design, testing…
Read topic →Theory of Computation
Formal languages and automata — DFA, NFA, regular expressions, context-free grammars, pushdown automata, Turing machines…
Read topic →Compiler Design
The phases of a compiler — lexical, syntax and semantic analysis, intermediate code, optimization and code generation —…
Read topic →Web Development
How the web works and how websites are built — HTML, CSS, JavaScript, responsive design, back-end and APIs, databases, h…
Read topic →AI & Machine Learning Basics
An introduction to artificial intelligence and machine learning — supervised, unsupervised and reinforcement learning, c…
Read topic →Cybersecurity Basics
The CIA triad, common threats like malware and phishing, web attacks, cryptography, authentication, network security, an…
Read topic →Cloud Computing
What cloud computing is, service models (IaaS, PaaS, SaaS), deployment models, virtualization and containers, major prov…
Read topic →Career, Placement & GATE Guide
Career paths after B.Tech CSE, how to prepare for campus and off-campus placements, a résumé and interview checklist, an…
Read topic →These notes are written for learning and revision. For exams, always follow your university syllabus and the official notifications of the exam body.