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A Year with the Surface Go
AndreGarzia.com website
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,807 posts.
Hardware & Electronics
Any year
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Firefox 80 and my confusion over its hardware accelerated video on Linux
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
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Playing with a Raspberry Pi 4 64-bit
Lightweight virtualization is a natural fit for low power devices and, so, seeing that the extremely popular Raspberry Pi line got an upgrade, we were very keen on trying the newly released Raspberry Pi 4 model B. Getting the board up and running with a 64bit kernel (and a 64bit userland) proved to be kind of a…
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Introduction to Open Source Laptop Project by Lukas Henkel
Ever dreamt of designing your own open-source laptop? For a while now I´ve been fascinated by this idea. As you can probably imagine, this is a monumental task that will require a lot of time and resources. Working alone on a project of this size makes matters even more difficult.
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PiDP-11 – Recreating PDP-11/70 with Raspberry Pi
The PiDP-11 is a modern replica of Digital Equipment Corporation’s influential PDP-11 minicomputer. Before, we had a computer on every desk and in every home–and long before they were in every pocket–computers were large, intimidating, and locked in special rooms at universities and corporations. The PDP series paved…
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Review: $99 TonidoPlug Linux Home Server, NAS
Have you ever wanted to get more out of your home network, like adding a NAS, without ponying up for expensive hard drives with Ethernet built-in, Time Capsules, Drobos or the like? While some newer routers come with a USB port allowing users to add a hard drive or printer on the network, they are c
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Conditions in the Intel 8087 floating-point chip's microcode
In the 1980s, if you wanted your computer to do floating-point calculations faster, you could buy the Intel 8087 floating-point coprocessor ...
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World's first white laser
Researchers at ASU have proven that semiconductor lasers are capable of emitting over the full visible color spectrum, which is necessary to produce a white laser.
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Spending an afternoon in the Sizewell control-room simulator
I was recently lucky enough to be invited along on a trip to Sizewell Bs operations training centre to see and try their control room simulator.
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Office Papermaking System That Turns Waste Paper into New Paper
2026 News Release
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I made a cheap home motion sensor and controller
After designing my first PCB , I went on a designing spree. It turns out that making PCBs (printed circuit boards, basically a piece of plastic that includes all the connections of your components in it. It helps make your project smaller and cut down on the amount of wires floating around) is so enjoyable, I’m PCBing…
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PicoPCMCIA – a PCMCIA development board for retro-computing enthusiasts
This is a PCMCIA development board for retro-computing enthusiasts who want to experiment with audio, networking, and expansion on vintage laptops and mobile devices. While ISA users have enjoyed projects like PicoGUS and PicoMEM, PCMCIA users have long been limited to scarce legacy cards with narrow functionality …
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Virtualizing Nvidia HGX B200 GPUs with Open Source
This blog post covers how we virtualized NVIDIA HGX B200 GPUs using open-source software. It talks about VFIO passthrough, QEMU PCI topology fixes, large BAR boot stalls, and Fabric Manager partitions.
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Restoring YC's Xerox Alto day 9: tracing a crash through software and hardware
Last week, after months of restoration, we finally got the vintage Xerox Alto computer to boot ( details ) and run programs. However, so...
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Moving fast in hardware: lessons from lab to $100M ARR
How to move fast when building for the physical world
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Introducing Zaius, Google and Rackspace’s Open Server Running IBM Power9
Here at Google Cloud, our goal is to enable our users and customers to be successful with options, high performance and value. We're committed to open innovation, and look forward to working with industry partners on platform and infrastructure designs.
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What happens when a GPU reads memory
Following an LDG.E SASS instruction through the hardware units in an RTX 4090.
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Bit-banging a BASIC Birthday
I spent this summer building a new app, for a machine that hasn’t been on the market since 1980 and wasn’t built to support graphics, sound, connectivity or even lowercase letters, sold by a company that went bankrupt a decade ago, tailor-made for an audience of one: my dad, who celebrated his 70th birthday this past…
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uLisp on the Raspberry Pi Pico
The RP2040 is a microcontroller chip designed by Raspberry Pi in the UK. It's a dual-core ARM Cortex M0+ running at 200 MHz which provides up to 16 MB of off-chip flash and 264 KB on-chip RAM. It has 30 GPIO pins, 4 of which can be used as analogue inputs, two UARTs, two SPI controllers, two I2C controllers, and 16…
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I’ve been reading a whole lot about tomatoes
Hello there, I'm betting that you need a break from curve flattening, and disinfectants, and Twitter, and Slack, and Zoom, and asking if people can see your...
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Meta RayBan AR glasses shows Lumus waveguide structures in leaked video
Introduction Just a short note today. I’m in the middle of my trip, which will end in Eindhoven next week (see notice at the end of this article), when I heard that Meta had leaked a video on…
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