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Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 322 posts.
Hardware & Electronics
Any year
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24-core CPU and I can’t move my mouse
This story begins, as they so often do, when I noticed that my machine was behaving poorly. My Windows 10 work machine has 24 cores (48 hyper-threads) and they were 50% idle. It has 64 GB of RAM an…
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A home-made lithographically-fabricated integrated circuit
I am very excited to announce details of the first homemade integrated circuit and share the journey that this project has taken me on over the past year. I hope that my success will inspire others and help start a revolution in home chip fabrication. When I set out on this project I had no idea of what I had gotten…
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Show HN: How I topped the HuggingFace open LLM leaderboard on two gaming GPUs
ML, Biotech, Hardware, and Coordination Problems. Sometimes I write about hard problems and how to solve them.
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Homebrew Cray-1A
As part two ( see previous attempt ) of my ongoing series in ‘computational necromancy,’ I’ve spent the last year and a half or so constructing my own 1/10-scale, binary-compatible, cycle-accurate Cray-1. This project falls purely into the “because I can!” category – I was poking around the internet one day looking…
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How MOS 6502 illegal opcodes work
The original NMOS version of the MOS 6502, used in computers like the Commodore 64, the Apple II and the Nintendo Entertainment System (NES), is well-known for its illegal opcodes: Out of 256 possible opcodes, 151 are defined by the architecture, but many of the remaining 105 undefined opcodes do…
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To ECC or Not to ECC
On one of my visits to the Computer History Museum – and by the way this is an absolute must-visit place if you are ever in the San Francisco bay area – I saw an early Google server rack circa 1999 in the exhibits. Not too fancy, right? Maybe even… a
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Time-Nuts -- Precise Time and Frequency for Amateurs
Time-Nuts ™ is a mailing list for amateurs who are interested in precise Time & Frequency. Topics include stability of quartz oscillators, measurements of rubidium and cesium atomic clocks, using WWVB, Loran-C, and GPS for long-term comparisons.
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The best laptop ever made
Apple has made many great laptops, but the 15-inch Retina MacBook Pro (2012–2015) is the epitome of usefulness, elegance, practicality, and power for an overall package that still hasn’t been (and may never be) surpassed.
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Sam Altman’s DRAM Deal
Or: How the AI Bubble, Panic, and Unpreparedness Stole ChristmasWritten by Tom of Moore’s Law Is DeadSpecial Assistance by KarbinCry & kari-no-sugataBased on this Video: https://youtu.be/BORRBce5TGwIntroduction — The Day the RAM Market SnappedAt the beginning of November, I ordered a 32GB DDR5 kit for pairing with a…
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Which GPUs to get for deep learning
Here, I provide an in-depth analysis of GPUs for deep learning/machine learning and explain what is the best GPU for your use-case and budget.
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The “high-level CPU” challenge (2008)
Do you love ("very") high-level languages? Like Lisp, Smalltalk, Python, Ruby? Or maybe Haskell, ML? I love high-level languages.
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Cheap FPGA Development Boards: What to look for
I bought Avnet's $49 Spartan 3A development board but it was discontinued not long afterward - right about the time when I decided I needed a few dozen more. I've since done some extensive research (thanks, Google!) to find a comparable thrifty thrill.
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Apple restricts Pebble from being awesome with iPhones
I’m surprised that you’re surprised
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Dissecting the Apple M1 GPU, part I
Apple’s latest line of Macs includes their in-house “M1” system-on-chip, featuring a custom GPU. This poses a problem for those of us in the Asahi Linux project who wish to run Linux on our devices, as this custom Apple GPU has neither public documentation nor open source drivers. Some speculate it might descend from…
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Apple iPhone charger teardown: quality in a tiny expensive package (2012)
This article is now available in Vietnamese Bộ sạc iPhone của Apple . Disassembling Apple's diminutive inch-cube iPhone charger reveals ...
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Counterfeit Macbook charger teardown: convincing outside but dangerous inside
What's inside a counterfeit Macbook charger? After my Macbook charger teardown , a reader sent me a charger he suspected was counterfeit. ...
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We Need Hardware Traps for Integer Overflow
How many problem domains require wrapping signed integers or non-wrapping unsigned integers? Can the current undefined case be replaced with a trap and everything else be left intact?
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Mystery signal from a helicopter
I heard a mysterious sound in a Youtube video and started to investigate.
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Thinkpad X210
A couple years ago, I used an old Thinkpad while my MacBook was being repaired. I enjoyed the experience so much that I ended up getting a Thinkpad X62 (an X61 chassis with modern internals). Last S…
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Why is Rosetta 2 fast?
Rosetta 2 is remarkably fast when compared to other x86-on-ARM emulators. I’ve spent a little time looking at how it works, out of idle curiosity, and found it to be quite unusual, so I figur…
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Precursor – A mobile, open source electronics platform
Precursor (pre·cur·sor | \ pri-ˈkər-sər): 1. one that precedes or gives rise to; a predecessor; harbinger 2. a pocketable open development board
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Let’s Build a Video Card
In these videos, I talk about how VGA signals work and build a circuit that provides the correct timing of sync signals so that a monitor recognizes the signal and displays an image stored on an EEPROM.
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First Atomic Clock Wristwatch
Do not be misled. The many "atomic time" wristwatches you see on the market today are merely cheap quartz wristwatches with a built-in radio receiver. The watch sets itself from 60 kHz VLF radio time signals transmitted by NIST from station WWVB near the US atomic clock in Boulder, Colorado. At least once a day…
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Floppy Disks: It’s Too Late
Someone has to break it to you, and that person is me. It’s over. You waited too long. You procrastinated or made excuses or otherwise didn’t think about it or care. You didn’t do…
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Is the keyboard faster than the mouse?
Which is faster, keyboard or mouse? A large number of programmers believe that the keyboard is faster for all (programming-related) tasks. However, there are a few widely cited webpages on AskTog which claim that Apple studies show that using the mouse is faster than using the keyboard for everything and that people…
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Tiny, cheap, and dangerous: Inside a fake iPhone charger
Thoughts on the death of Ma Ailun According to reports , a woman in China was tragically electrocuted using her iPhone while it was char...
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Gathering Intel on Intel AVX-512 Transitions
Investigating some details of SIMD related frequency transitions on Intel CPUs.