Complete Guide

Complete CS Fundamentals Tutorial

The CS fundamentals are what separate developers who understand their tools from those who just use them. This guide covers all 64 CS Fundamentals topics on TheCodeForge — OS, networking, DBMS and compiler design.

Learning Roadmap

Beginner → Understand how operating systems manage processes and memory

Intermediate → Learn networking protocols, database internals and compiler basics

Advanced → Connect the dots between hardware, OS and the software you write

Topics

Beginner

Intermediate

Advanced

Jump to section

Operating Systems (12)Computer Networks (18)DBMS (11)Compiler Design (9)Software Engineering (14)

Operating Systems

Introduction to Operating Systems Beginner Process and Thread Management Intermediate Process Scheduling Algorithms Intermediate Memory Management in OS Intermediate Virtual Memory and Paging Advanced Deadlocks in OS Advanced Semaphores and Mutex Advanced Inter-Process Communication Advanced File Systems in OS Intermediate OS Interview Questions Intermediate Thrashing in OS Advanced Spooling in OS Intermediate

Computer Networks

Introduction to Computer Networks Beginner OSI Model Explained Beginner TCP/IP Model Intermediate TCP vs UDP Intermediate HTTP and HTTPS Explained Beginner HTTP/2 and HTTP/3 Intermediate DNS — Domain Name System Beginner IP Addressing and Subnetting Intermediate Routing Protocols Advanced WebSockets Explained Intermediate REST vs SOAP vs GraphQL Intermediate Network Security Basics Intermediate Firewalls and Proxies Intermediate VPN Explained Beginner Network Interview Questions Intermediate CDN How It Works Intermediate ARP — Address Resolution Protocol Intermediate DHCP Explained Beginner

DBMS

Introduction to DBMS Beginner ACID Properties in DBMS Intermediate Database Normalization in DBMS Intermediate Relational Algebra Advanced Concurrency Control in DBMS Advanced Indexing in DBMS Intermediate Transactions in DBMS Advanced Deadlock in DBMS Advanced ER Model in DBMS Beginner DBMS Interview Questions Intermediate Checkpoint in DBMS Advanced

Compiler Design

Introduction to Compiler Design Advanced Lexical Analysis Advanced Syntax Analysis and Parsing Advanced Semantic Analysis Advanced Code Generation Advanced Symbol Table in Compiler Advanced Context-Free Grammar Advanced Finite Automata and Regular Expressions Advanced Just-In-Time Compilation Advanced

Software Engineering

Software Development Life Cycle Beginner Agile and Scrum Explained Beginner SOLID Principles Intermediate Design Patterns Overview Intermediate Clean Code Principles Intermediate Code Review Best Practices Intermediate Test-Driven Development — TDD Intermediate Software Testing Types Beginner Version Control Best Practices Beginner Documentation Best Practices Beginner Refactoring Techniques Intermediate Continuous Improvement in Software Beginner Monorepo vs Polyrepo Intermediate Conway's Law Intermediate

Start from the beginning

Every tutorial starts with a plain-English analogy — then real code, then interview questions.

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