DOOMSDAY

The Complete Computer Science Knowledge Base

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Everything you need to know about Computer Science — gathered, organized, and preserved. Every concept, every system, every protocol, every piece of knowledge that keeps the digital world running. One by one.

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Table of Contents

• The Mission
• Domains
  • Internet Infrastructure
  • More Coming
• Features
• Getting Started
• How to Use
• Contributing
• License

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The Mission

Civilization runs on software. Networks, protocols, operating systems, databases, cryptography, compilers — the entire stack of modern computing is built on decades of accumulated knowledge. This project exists to preserve that knowledge in a form that survives anything: no internet required, no servers, no dependencies. Just a file and a browser.

Each domain of Computer Science is added as a self-contained offline module. Start with one, learn it end-to-end, and carry it with you.

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Domains

Internet Infrastructure

Directory	INTERNET/
File	index.html
Status	Complete

A comprehensive, offline-first reference covering the entire Internet stack — from bare-metal hardware and Linux fundamentals to DNS root servers, BGP routing, Kubernetes, ISP operations, and beyond. 40 volumes, interactive simulations, quizzes, and challenge labs.

Explore Internet →

More Coming

Domain	Status
Operating Systems	⏳ Planned
Compilers & Languages	⏳ Planned
Databases & Storage	⏳ Planned
Cryptography & Security	⏳ Planned
Algorithms & Data Structures	⏳ Planned
Computer Architecture	⏳ Planned
Software Engineering	⏳ Planned
Artificial Intelligence	⏳ Planned
And everything else...	⏳ Planned

Every domain will follow the same offline-first, single-file approach — self-contained, zero-dependency, designed to be opened in any browser anywhere.

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Features

• 100% Offline — Every module works without internet. No CDNs, no telemetry.
• Single-File Modules — Each domain is self-contained in one HTML file.
• Interactive — Simulations, quizzes, and hands-on labs built right in.
• Searchable — Full-text search across every module.
• Portable — USB stick, offline tablet, printed — take it anywhere.
• Progress Tracking — Bookmarks and completion saved locally.

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Getting Started

git clone https://github.com/swadhinbiswas/DOOMSDAYCS.git
cd DOOMSDAYCS

Open any domain's index.html in a browser:

open INTERNET/index.html

No build tools. No npm install. No setup.

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How to Use

• Browse the sidebar to navigate topics within a domain.
• Press / to search across all content instantly.
• Use interactive simulations to see concepts in action.
• Complete challenge labs and track your progress.
• Toggle dark mode for comfortable reading.

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Contributing

This is a living archive. If a domain is missing, incomplete, or could be improved — open an issue or send a pull request.

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License

MIT

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_{Built for the day when the only thing you have is what you carry.}