Tech
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How Pitfall Builds its World
An approachable deep-dive into how the Atari 2600 game Pitfall squeezed 255 jungle screens into a few kilobytes using a…
How Pizza Tycoon simulated traffic on a 25 MHz CPU
A reverse-engineering deep dive into how the 1994 game Pizza Tycoon moved dozens of cars around its city on tiny hardwar…
How Samba Was Written
Andrew Tridgell's famous 2003 account of reverse engineering a proprietary network protocol, told with a witty analogy a…
How Secure Is My Password?
A tool that estimates how long a computer would take to crack the password you type, a quick way to see what makes passw…
How Serious Sam Handled Masses of Enemies on 56k Modems
An analysis of the Serious Engine 1 source code explaining how Croteam synchronized hundreds of enemies over slow dial-u…
How Stale Is Your AI
A live dashboard showing the release date and training cutoff of 20 AI models, with two ticking clocks for how old each…
How the Soviets Put a Lander on Venus
How Soviet engineers, after repeated failures, built Venera probes tough enough to survive crushing pressure and furnace…
How to Become a Computer Science Engineer at MIT for Free
A curriculum of about 40 free university courses arranged over four academic years, giving a self-taught route through a…
How to Copy a File from a 30-Year-Old Laptop
A fun retro-computing adventure about getting one file off a three-decade-old laptop with no modern ports, using improvi…
How to Design Programs
The complete text of the classic introductory programming book, which teaches a systematic design recipe for writing pro…
How to Generate Procedural Racetracks
A devlog article explaining how to generate procedural racetracks without noise functions, with diagrams of the algorith…
How to Learn C# Part 3 - Coding Basics
The third part of a beginner tutorial series on C# and .NET, covering the core syntax, variables and control flow you ne…
How To Make A CPU
A picture-driven walkthrough of how a CPU is built from basic logic, starting with simple parts and working up to a mach…
How to Make Full Colour PCB Art
A write-up of the ideas, pitfalls, and finally working method for adding full colour art to circuit boards, from the Pix…
How to Report Online Scams
A guide for finding the official place to report online scams and cybercrime in your country, with immediate safety advi…
How to Run a Small Social Network Site for Your Friends
Darius Kazemi's widely shared guide to running a small social network for friends, focused on community-building princip…
How to Write Your Own Compiler
A university tutorial that walks through writing a compiler from scratch, organized as a table of contents of chapters c…
How Users Read on the Web
Jakob Nielsen's classic 1997 study finding that web readers scan rather than read, with the experiments on concise, high…
Howbigg
A display comparison tool that shows monitor, TV and phone sizes side by side, with exact dimensions, pixel density and…
How-To Geek - We Explain Technology
Technology site offering how-to guides, reviews, and explainers covering software, hardware, mobile, and smart home topi…
HP Computer Museum
An archive of classic Hewlett-Packard computing products from 1966 to 1991, including calculators, desktop computers, an…
HTML Can Do That
A reference page listing dynamic functionality that modern HTML can now handle on its own, much of which used to require…
HTML Canvas Deep Dive
An online book that teaches the HTML canvas API from basic drawing through charts, animation, a small game, WebGL, WebAu…
HTML Reference
A free visual guide to every HTML element and attribute, with short explanations and examples that make it a quick looku…
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