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How Multi-Beam Flash Lidar Works
An inside look at how Ouster's multi-beam flash lidar architecture works, and why silicon-based design is transforming the lidar industry.
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The latest blog posts to take off on Hacker News. 258 posts.
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Memory-Level Parallelism: Intel Skylake versus Apple A12/A12X
Modern processors execute instructions in parallel in many different ways: multi-core parallelism is just one of them. In particular, processor cores can have several outstanding memory access requests "in flight". This is often described as "memory-level parallelism". You can measure the level of memory-level…
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Librem5 Hardware Update
Purism makes premium phones, laptops, mini PCs and servers running free software on PureOS. Purism products respect people's privacy and freedom while protecting their security.
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Making floating point math highly efficient for AI hardware
In recent years, compute-intensive artificial intelligence tasks have prompted creation of a wide variety of custom hardware to run these powerful new systems efficiently. Deep learning models, suc…
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How Many Computers Are in Your Computer?
A catalogue of software constructs, languages, or APIs which are unexpectedly Turing-complete; implications for security and reliability.
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96-core ARM supercomputer using the NanoPi-Fire3
Building a high performance supercomputer for under £100 (£550 including twelve Fire3s). Parts list, benchmarks and downloadable plans for laser-cutting the acrylic case.
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We're in a Golden Age for Amateur Radio
When I started my ham life as KK6VSI in August of 2015, I wish I could have had the information I'm about to lay out here. Of course, most of the equipment didn't yet exist. So another way of looking at it is that my entry into amateur radio was perfectly timed for my generation's Golden Age of Ham Radio.
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New Lower-Cost, AMD-Powered M5a and R5a EC2 Instances
From the start, AWS has focused on choice and economy. Driven by a never-ending torrent of customer requests that power our well-known Virtuous Cycle, I think we have delivered on both over the years: Choice – AWS gives you choices in a wide range of dimensions including locations (18 operational geographic regions, 4…
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2018 Mac Mini Review
I hardly ever think about my Mac Mini, but it serves a vital role for my family as our home-theater mixer , Plex server, ScanSnap server, Apple Photos backup, and Backblaze host for our NAS . 1 Almost every port on the back is in use, and it runs 24/7, reliably, in total silence.
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Jeri Ellsworth and the Robot Uprising of 2038
In a stuffed apartment filled with hydrofluoric acid, oscilloscopes and a transistor curve tracer, Jeri Ellsworth carefully places a hand-cut silicon wafer into a 1000 degree furnace. The ambient noise of police sirens can be heard in the background: "Ugh, the police are coming... So the instructions for the…
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Available on Google Cloud: Intel Optane DC Persistent Memory
In-memory workloads continue to be the backbone of innovative data management use cases, but as demand increases, so does the need for even larger memory capacity. In July, we announced a partnership with Intel and SAP to offer GCP virtual machines supporting Intel® Optane DC™ persistent memory for SAP workloads. This…
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Google Home (in)Security
TL;DR: An undocumented API in Google home devices is easily exploitable. This command will reboot any on your local network: nmap –open -p 8008 192.168.1.0/24 | awk ‘/is up/ {print up};…
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Global Kernel Locks in APFS
Over the past several months, a handful of people had been complaining that Mercurial's test harness was executing much slower on Macs. But this slowdown seemingly wasn't occurring on Linux or Windows. And not every Mac user experienced the slowness!
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Slack on a SNES
I recently learned that in the mid 90s in Japan, the Super Nintendo had a peripheral called a Satellaview, which was a satellite modem that would receive data broadcasts from Nintendo.
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Building a Titan: Better security through a tiny chip
At the Made by Google event last week, we talked about the combination of AI + Software + Hardware to help organize your information. To better protect that information at a hardware level, our new Pixel 3 and Pixel 3 XL devices include a Titan M chip.We briefly introduced Titan M and some of its benefits on our…
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Librem 5 general development report – October
Purism makes premium phones, laptops, mini PCs and servers running free software on PureOS. Purism products respect people's privacy and freedom while protecting their security.
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HDMI Light V2: Open-Hardware FPGA-Based Clone of Philips Ambilight (2014)
It’s been over a year since I created the first version of my Ambilight clone , but I finally found the time to return to it and add some new features. I was originally planning on adding colour correction (to correct for the purple wall behind my TV) and output delay (to get perfect synchronisation with the TV), but…
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