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The most popular blog posts about hardware & electronics on Hacker News. 3,046 posts.
You'd think it'd be easy to reboot a PC, wouldn't you? But then you'd also think that it'd be straightforward to convince people that at least making some effort to be nice to each other would be a mutually beneficial proposal, and look how well that's worked for us. Linux has a bunch of different…
Reecently, I achieved one of the core milestones of my personal project, porting the Darwinkernel to the ARM architec...
I'm building an 80386-compatible core in SystemVerilog and blogging the process. In the previous post , we looked at how the 386 reuses one barrel shifter for all shift and rotate instructions. This time we move from real mode to protected and talk about protection .
randomwraith.com - LEGO, Beer & pastimes
IRC stands for Internet Relay Chat . Invented in the late 1980s, it's one of the oldest and most popular realtime chat protocols. Despite being over 30 years old, it's still actively developed, and hundreds of thousands of people still use it to chat every day.
Tomu is a super cheap Open Source Hardware 24 MHz ARM computer with 8 KB of RAM and 64 KB of ROM that fits into your USB connector! Of course I had to put Commodore 64 BASIC on it, which can be accessed through the USB-Serial port exposed by the device.
After spending most of the past decade without a decent computer, all laptops with GPUs more able at toasting bread than proper gaming, I finally cracked the spare Bitcoin piggy-bank and built my d…
What's inside a TTL chip? To find out, I opened up a 74181 ALU chip, took high-resolution die photos, and reverse-engineered the chip. 1 In...
Folding antennas into different shapes to create near infinite radiation patterns.
The trend for soldered on RAM in modern laptops is truely evil especially in these current trying times of shortage induced high prices. I normally run 2 laptops, one for personal stuff and one for…
Nobody doubts that the C64 was the greatest selling single computer model of all time, it even made it into the Guinness Book of World Records, but nobody quite knows how many it really was: Most sources say 17 million, others say 22 or even 30 million. With a high degree of confidence, I can now…
Nintendo's Switch 2, launched with Mario Kart World, suffers from inadequate HDR implementation despite industry standards. The game qualifies "fake HDR," using SDR-first methods that limit color and dynamic range. Developers must prioritize HDR from the outset to truly leverage its potential and enhance visual…
I was wondering what the IBM Personal Computer would have been like if they had chosen the Motorola 68000 instead of the Intel 8088, so I used my MCL86+ to emulate the 68000 and find out! The MCL86…
This week, I went to the tinyML Summit in Burlingame, Calif. TinyML, or running small machine learning models on constrained devices, is one of the most exciting technologies I’ve encountered. But it’s also the one most likely to put people to sleep when I talk about it. Using local computing to handle object or even…
Recently, I’ve started to explore RISC-V. I experienced the journey as pretty refreshing, particularly because I’ve been working on x86 low-level software almost exclusively for about 10 years.
Lately, I’ve been really into 3D printing along with asking myself what we can do with this technology now that it’s become, well, a technology. (At least, in the “this is a thing that can now be used, is robust, and is generally accessible to many people” sense of technology.) The first thing to print on a 3D printer…
Devices based on the i.MX8 or i.MX8M (such as the Librem phone or MNT Reform) have received popular coverage recently. The number of firmware blobs involved in the bringup of these devices is often a point of discussion. At times, people have considered whether some of these blobs could be replaced with libre…
Modern processors have the ability to execute many instructions per cycle, on a single core. To be able to execute many instructions per cycle in practice, processors predict branches. I have made the point over the years that modern CPUs have an incredible ability to predict branches. It makes benchmarking difficult…
Photography is arguably my oldest hobby. I’ve loved taking photos for as long as I can remember. I reflected on my first encounter with digital photography in 2003 in a recent post, but I’m old enough…
I've recently thought a lot about the essay The computer built to last 50 years by Ploum. It's a delightful piece about the author's ideal, long-lasting computational platform - precisely the thing I enjoy reading. It's got a nice blend of slow tech and libre computing advocacy mixed with personal ponderings centered…
The physical data format on a Commodore 1541 5¼-inch floppy disk as used by the C64 is completely defined in software. The drive’s operating system fits 170 KB on a disk. This article explores different strategies, each with its pros and cons, to fit up to 246 KB.
For this project I designed and built a meshtastic radio that plugs directly into the Commodore 64. My goal was to release this at the VCF M...
I have recently been working on tuning circuits, which typically consist of an inductor and a capacitor (i.e. an LC circuit). For those not familiar with inductors, they are passive components that store energy in a magnetic field. They oppose changes in current, meaning that they pass direct current (DC) and block…
I like CPU architectures, especially weird, interesting and unusual ones. For example, the Intel iAPX 432 is still something I would love to play around with. Recently, I realized that a working CPU can be made with just a simple Move instruction. For this to work, everything needs to be memory mapped. The ALU…
round 2: rooting & analysing firmware of the TP-Link TL-WR841N
One of the most significant single advancements in telecommunications technology was the development of microwave radio. Essentially an evolution of radar, the middle of the Second World War saw the first practical microwave telephone system. By the time Japan surrendered, AT&T had largely abandoned their plan to…
