Computing Decoded

Guides

A written companion for each video: the same explanation, with the full code, the numbers I measured and a free PDF.

All guides

Cover of the guide: How a Browser Renders a Web Page: From HTML to Pixels

How a Browser Renders a Web Page: From HTML to Pixels

Follow one real page through the DOM, CSSOM, render tree, layout, paint and compositing, with measured numbers and a free PDF.

9 min read9-page PDFVideo 5:59
 Cover of the guide: Python Bytecode Explained: What Really Runs Your Code

Python Bytecode Explained: What Really Runs Your Code

See what Python does with a function: tokens, AST, bytecode, the stack machine and the .pyc cache, with real dis output and a free PDF.

9 min read9-page PDFVideo 5:31
 Cover of the guide: How Hash Tables Really Work (Python Dict Explained)

How Hash Tables Really Work (Python Dict Explained)

How hash tables work, step by step: hashing, modulo, collisions, resizing and the compact Python dict, with measured numbers and a free PDF.

10 min read9-page PDFVideo 5:53