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Show HN: I made an open-source laptop from scratch

byran.ee

131–140 of 338 posts

Re: Show HN: I made an open-source laptop from scratch

#131
post #32

Earlier quoted context omitted.

We discussed wave functions, probability, fermions/bosons, did calculations for particle in a box, the Schrödinger model, and went just up to deriving the hydrogen atom. Nothing super fancy, but it was one heck of an experience!

But did you win the Putnam?

For those who don't know, stackghost is referencing this classic moment on HN:

https://news.ycombinator.com/item?id=35079

Re: Show HN: I made an open-source laptop from scratch

#135
post #51

Earlier quoted context omitted.

It's more possible than you'd think! The options are basically: - Go to a fancy private school like Phillips Exeter - Really luck out and get into a great public STEM magnet school - Homeschool and take private classes / have very smart parents

Some public schools in very wealthy counties will teach some basic quantum mechanics in honors/AP classes, too. All you have to do is acquire parents that can afford the shittiest neighborhood in those districts!

They did in mine in the Netherlands. Also electronics and programming (this was a long time ago so it was all pretty new); it was a special class to prep for university more than the regular curriculum does, but it was a public school and not even a very good one; just a few really good and switched on teachers (physics, math and chem).

Re: Show HN: I made an open-source laptop from scratch

#136
> A highly integrated, high end, open source laptop.

Not sure what’s meant by “high end” here. Performance is a rather important aspect, and the RK3588 this uses will make it slower than almost every laptop on the market. Practically all are twice as fast (both single- and multi-core), most are 3–5× multi-core, and the best approach 7× (paired with 2.5× single-core).

Looking at Lenovo India, they sell three laptops that are slower multi-core and maybe slower single-core (running Celeron N4020 or Athlon Silver 7120U); after that, they’re all at least twice as fast, in both single- and multi-core benchmarks.

(I’m simplifying to PassMark’s single-/multi-core scores, using https://www.cpubenchmark.net/cpu.php?cpu=Rockchip+RK3588&id=...> and such.)

From https://www.byran.ee/posts/creation>: “In many aspects, the Rockchip RK3588 is the fastest consumer-procurable chip on the market.” As someone not involved in these spaces, this was my vague impression, but it still ends up disappointing if you simply can’t get good performance for a project like this because only bigger companies can buy the better-performance things. It’s an extremely impressive project, but unfortunately will be rendered not viable for many—probably most—people for this one reason. That makes me sad. I wish they’d sell us the good stuff.

Re: Show HN: I made an open-source laptop from scratch

#138
Most of the older LED display have standard 30 pin or 40 pin connection. Lacking standard is keyboard connectors. Most standard are battery and fans.

Maybe laptop should have two layers or parts.One for Motherboard and memory and another for connectors, fans, power supply, battery etc. Then we can have more standard even if a little thicker.

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