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“Hello, world” from scratch on a 6502 — Part 1

Ben Eater · 5.9M views · 2019-09-14 · 27:25

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Overview

Ben Eater starts a series building a working computer on breadboards around the 6502 microprocessor. In this first part he gets a 'hello world' running from scratch.

On Hacker News

HN repeatedly recommends it as the best hands-on way to understand how a CPU and a computer work from first principles.

Recommended by 11 HN people across 11 months · HN mentions 2019–2026

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What people said

Night_Thastus · 2022-05 · Strong recommendation

For anyone interested in the 6502, assembly and just in general how things like loops, conditional branches, hardware communication, etc all work, I HIGHLY recommend Ben Eater's videos on the subject: [VIDEO] They are incredibly fascinating!

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throwaway47292 · 2021-11 · Strong recommendation

i would suggest to follow Ben Eater's 8 bit computer [VIDEO] and would strongly recommend to build it (you can see the parts on his website [LINK] or buy the whole kit)

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halotrope · 2020-06 · Strong recommendation

I found the „Hello world from scratch“[1] series from Ben Eater incredibly helpful in connecting the dots between electricity and modern computers. Strictly speaking it is about electronics, still it is superbly presented and incredibly enlightening when coming from „normal“ software engineering perspective of things. What actually got me there was the book „Code“ by Charles Petzold[2] which traces the development from early circuitry like light bulbs and telegraph wires to modern digital logic. I found that after being introduced to these concepts, learning about the fundamental physics was much more accessible since it was framed in the context of contemporary application. 1: [VIDEO] 2: [LINK]

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Sources

Video by Ben Eater, played through YouTube.

Data and selection notes

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HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

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