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    3.14.by

    3.14.by · Personal blog · on HN since 2009

    A Belarus-based hobbyist site documenting hardware projects such as homemade CPUs, extreme overclocking, chip decapping and microcontroller programming.

    Visit blogHN submissions
    Hardware & ElectronicsRetro Computing
    What HN says

    HN links it for its hands-on hardware experiments, including homemade CPUs and liquid nitrogen overclocking, and commenters cite its microscopy and chip work.

    Stats for nerds
    16HN people shared it
    16linked in comments
    550story points
    Jan 2023last shared
    2013people per year2023

    Top posts on HN

    1. 1
      Lichee Console 4A – RISC-V mini laptop: Review, benchmarks and early issues
      1 person · 234 points · first shared 2024 · 156 comments on HN
    2. 2
      Homemade CPU – from scratch
      3 people · 120 points · first shared 2010 · 31 comments on HN
    3. 3
      Overclocking Arduino with liquid nitrogen cooling
      3 people · 81 points · first shared 2013 · 18 comments on HN
    4. 4
      Why Google AppEngine sucks
      2 people · 48 points · first shared 2009 · 46 comments on HN
    5. 5
      Building a nuclear reactor at home – from scratch
      2 people · 38 points · first shared 2011 · 4 comments on HN
    6. 6
      Using Atom 330 with server applications
      1 person · 17 points · first shared 2009 · 12 comments on HN
    7. 7
      Programming Intel 87C51 – first high-volume integrated microcontroller (1980)
      1 person · 4 points · first shared 2024 · 1 comments on HN
    8. 8
      Overclocking a quartz wristwatch
      2 people · 3 points · first shared 2019 · Discussion on HN
    9. 9
      Activiting Office 2019 without Microsoft account
      1 person · 2 points · first shared 2018 · Discussion on HN
    10. 10
      Is 16 Terabytes Enough for Anyone?
      1 person · 2 points · first shared 2019 · Discussion on HN

    What HN people wrote when they linked it

    • userbinatorNov 2019

      Theoretically, optical media should be easier to recover than magnetic, because the technology to view their surfaces in detail is readily available --- a light microscope is enough to humanly view the actual recorded data on a CD and even a DVD:

      https://3.14.by/en/read/cd-dvd-microscope

      https://www.youtube.com/watch?v=Y8_HCLPdpkI (CD-R)

      It would be interesting to see what "disc rot" looks like at that level of detail; and if better reading hardware may be able to read it. In particular, pressed discs actually store data in the varying height of the polycarbonate disc, so as long as those pits and lands haven't been damaged, even if the metallisation is gone, the data remains intact; and if there was a way to strip and re-coat that layer, pressed discs could be recovered. For CD-Rs, perhaps the dye has faded to the point where the typical drive (which can't really spin the disc slower than 1x) won't be able to discern the pits from the lands, but if that data can still be seen somehow, it's recoverable.

    • goldenkeyMay 2014

      Kind of silly that you wouldn't use MongoDB yet you'd use GAE. GAE is a turd, Google has been struggling to compete in the cloud business and failed to come out with any value. You get locked into a Heroku-like platform with awful performance, awful stability, and arcane quotas.

      http://www.carlosble.com/2010/11/goodbye-google-app-engine-gae/

      http://3.14.by/en/read/why-google-appengine-sucks

    • BarsMonsterJan 2023

      Some time ago I posted exactly about that : https://zeptobars.com/en/read/how-to-open-microchip-asic-what-inside

      My latest microscope is this one, but Casio photo was made by temporary microscope I assembled from Thorlabs & Olympus parts: https://3.14.by/en/read/olympus-bx60-fluorescence-metallurgical-microscope

    • raszMay 2018

      It wouldnt even be hard emulation in a strict sense of the word. 8086 itself is microcoded. Anything from https://3.14.by/en/read/homemade-cpus will be able to run equivalent microcode. https://gigatron.io/ is about 1000 transistors/diodes, totally doable by hand if you are crazy enough.

    • mrbJul 2013

      Well, standard cell ASIC vs. full custom ASIC is a rather pedantic distinction IMHO :)

      By the way, someone has already developped a full custom ASIC for Bitcoin mining: http://3.14.by/en/read/bitfury-bitcoin-mining-chip

    • gaudatJun 2022

      I expected some extreme overclocking action complete with liquid nitrogen...

      https://3.14.by/en/read/arduino-liquid-nitrogen-overclocking

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