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Computer fundamentals

How a computer actually works — CPU, memory, binary, and the layers between the hardware and your code.

• 2026-08-20 From source code to running program: compilers, linkers, and the Python VM // fundamentals · compilers
• 2026-08-17 How regular expressions work: one pattern language for every tool // fundamentals · text
• 2026-08-22 How Git works: snapshots, not diffs // tools · git