Full Width [alt+shift+f] FOCUS MODE Shortcuts [alt+shift+k]
Sign Up [alt+shift+s] Log In [alt+shift+l]
Top Categories > technology
#all #programming #history #technology #startups #life #science #literature #creative #architecture #design #travel #finance #comics #AI #indiehacker #cartography Muted Categories [alt+←][alt+→]
Computer Ads from...
Byte Interviews IBM's Philip D. Estridge (1983) They dig into the IBM PC.
yesterday
Abort Retry Fail
The QNX Operating System Quantum Software and the microkernel UNIX
2 days ago
Computer Ads from...
ArtSci MagiCalc The Visual Difference. See for yourself.
5 days ago
Arduino Blog
MIT’s Octopus is a delightful environmental sensor for urban deployment There are a lot of very good reasons to monitor local environmental conditions, especially as they...
a week ago
13
a week ago
There are a lot of very good reasons to monitor local environmental conditions, especially as they pertain to climate change research and various ecological protection initiatives. But doing so in urban locales is a challenge, as simply mounting a device can be difficult. That’s...
computers are bad
2025-08-25 teletext in north america I have an ongoing fascination with "interactive TV": a series of efforts, starting in the 1990s and...
a week ago
23
a week ago
I have an ongoing fascination with "interactive TV": a series of efforts, starting in the 1990s and continuing today, to drag the humble living room television into the world of the computer. One of the big appeals of interactive TV was adoption, the average household had a TV...
Old Vintage...
Reverse-engineering Roadsearch Plus, or, roadgeeking with an 8-bit CPU other irredeemably nerdy habit is roadgeeking, exploring and mapping highways both old and new, and...
a week ago
20
a week ago
other irredeemably nerdy habit is roadgeeking, exploring and mapping highways both old and new, and it turns out that 8-bit roadgeeking on ordinary home computers was absolutely possible. For computers of this class, devising an optimal highway route becomes an exercise not only...
Arduino Blog
Meet the teens behind RedSnapper: a smart Arduino-powered prosthetic arm An affordable, AI-assisted, wearable robotic arm? That’s not science fiction – it’s RedSnapper, an...
a week ago
20
a week ago
An affordable, AI-assisted, wearable robotic arm? That’s not science fiction – it’s RedSnapper, an open-source prosthesis built by PAC Tech, a team of high school students from Istituto Maria Immacolata in Gorgonzola, Italy. Powered entirely by Arduino boards, their project won...
Computer Ads from...
Vote for the August 2025 + Post Topic Let's get this party started.
a week ago
Electronics etc…
Power Switch and Battery Replacement of an SR620 Universal Time Interval Counter Introduction The SR620 Repairing the SR620 Replacing the Backup 3V Lithium Battery Switching to an...
2 weeks ago
22
2 weeks ago
Introduction The SR620 Repairing the SR620 Replacing the Backup 3V Lithium Battery Switching to an External Reference Clock Running Auto-Calibration Oscilloscope Display Mode References Footnotes Introduction A little over a year ago, I found a Stanford Research Systems SR620...
Computer Ads from...
Comics from March 1978 Issue of Creative Computing Old Timey fun
2 weeks ago
./techtipsy
Those cheap AliExpress 18650 Li-ion cell power bank enclosures suck, actually I had a few old ThinkPad batteries lying around. They were big, bulky and not holding much of a...
2 weeks ago
24
2 weeks ago
I had a few old ThinkPad batteries lying around. They were big, bulky and not holding much of a charge. Inside those were standard 18650 Li-ion battery cells. I have two TOMO M4 power banks around, and they are fantastic for reusing these old 18650 battery cells inside them. You...
Abort Retry Fail
Upgrading a Macintosh Classic II Some fun on a Sunday
2 weeks ago
computers are bad
2025-08-16 passive microwave repeaters One of the most significant single advancements in telecommunications technology was the development...
2 weeks ago
23
2 weeks ago
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...
Arduino Blog
Learn how to make a 2D capacitive touch sensor with ElectroBOOM Mehdi Sadaghdar, better known as ElectroBOOM, created a name for himself with shocking content on...
2 weeks ago
23
2 weeks ago
Mehdi Sadaghdar, better known as ElectroBOOM, created a name for himself with shocking content on YouTube full of explosive antics. But once you get past the meme-worthy shenanigans, he is a genuinely smart guy that provides useful and accessible lessons on many electrical...
./techtipsy
The 'politsei' problem, or how filtering unwanted content is still an issue in 2025 A long time ago, there was a small Estonian website called “Mängukoobas” (literal translation from...
3 weeks ago
25
3 weeks ago
A long time ago, there was a small Estonian website called “Mängukoobas” (literal translation from Estonian is “game cave”). It started out as a place for people to share various links to browser games, mostly built with Flash or Shockwave. It had a decent moderation system,...
Computer Ads from...
What Interviews Should I Look For? Help point me in the right direction.
3 weeks ago
Electronics etc…
Repairing an HP 5370A Time Interval Counter MathJax.Hub.Config({ jax: ["input/TeX", "output/HTML-CSS"], tex2jax: { inlineMath: [...
3 weeks ago
84
3 weeks ago
MathJax.Hub.Config({ jax: ["input/TeX", "output/HTML-CSS"], tex2jax: { inlineMath: [ ['$', '$'], ["\\(", "\\)"] ], displayMath: [ ['$$', '$$'], ["\\[", "\\]"] ], processEscapes: true, skipTags: ['script', 'noscript', 'style', 'textarea', 'pre',...
Computer Ads from...
Practical Computing Interviewed Alan Sugar (1985) A Quick Look Behind the Scenes at Amstrad.
3 weeks ago
Arduino Blog
A robotic hand with the dexterity to sign the whole ASL alphabet Even if we ignore intelligence, humans are able to speak when other animals — even other great apes...
3 weeks ago
26
3 weeks ago
Even if we ignore intelligence, humans are able to speak when other animals — even other great apes — can’t, because of our specialized and complex vocal anatomy. Similarly, ASL (American Sign Language) wouldn’t be possible without our incredible hand and finger dexterity. Like...
./techtipsy
How to run Uptime Kuma in Docker in an IPv6-only environment I use Uptime Kuma to check the availability of a few services that I run, with the most important...
4 weeks ago
27
4 weeks ago
I use Uptime Kuma to check the availability of a few services that I run, with the most important one being my blog. It’s really nice. Today I wanted to set it up on a different machine to help troubleshoot and confirm some latency issues that I’ve observed, and for that purpose...
Arduino Blog
This inexpensive adapter brings Apple Universal Control to vintage Macs In the distant past of about two decades ago, one would need to use a KVM (Keyboard, Video, Mouse)...
4 weeks ago
28
4 weeks ago
In the distant past of about two decades ago, one would need to use a KVM (Keyboard, Video, Mouse) switch to control multiple computers with the same mouse and keyboard — and even then, it would take a button press to move from one to the other. Today, Apple’s Universal Control...
./techtipsy
3D printing is pretty darn cool, actually I love 3D printing. Out of all the tech hype cycles and trends over the last decade, this one is...
4 weeks ago
28
4 weeks ago
I love 3D printing. Out of all the tech hype cycles and trends over the last decade, this one is genuinely useful. There’s simply something magical about being able to design or download a model from the internet, send it to a machine, and after a few hours you get an actual...
Old Vintage...
A real PowerBook: the Macintosh Application Environment on a PA-RISC laptop I like the Power ISA very much, but there's nothing architecturally obvious to say that the next...
a month ago
32
a month ago
I like the Power ISA very much, but there's nothing architecturally obvious to say that the next natural step from the Motorola 68000 family must be to PowerPC. For example, the Palm OS moved from the DragonBall to ARM, and it's not necessarily a well-known fact that the...
Christian Selig
High quality, low filesize GIFs While the GIF format is a little on the older side, it’s still a really handy format in 2025 for...
a month ago
31
a month ago
While the GIF format is a little on the older side, it’s still a really handy format in 2025 for sharing short clips where an actual video file might have some compatibility issues. For instance, I find when you just want a short little video on your website, a GIF is still so...
Computer Ads from...
Your Computer Interviewed Chris Curry (1981) Chris talks about his work with Clive Sinclair and Acorn Computers with a little BBC Micro.
a month ago
Engineers Need Art
Camera Genealogica (Part 1) I’m very much into genealogy. I came to realize that my interest was more specifically as a kind of...
a month ago
26
a month ago
I’m very much into genealogy. I came to realize that my interest was more specifically as a kind of photograph genealogist.
Computer Ads from...
Altima NSX Light in weight. Light in price. Heavy in features.
a month ago
Arduino Blog
Could these VR haptic gloves replace human touch? We’re seeing a substantial turn towards online social interaction replacing in-person social...
a month ago
22
a month ago
We’re seeing a substantial turn towards online social interaction replacing in-person social interaction — especially among the younger generations. That was exacerbated and accelerated by the COVID-19 pandemic. But mountains of research show that physical touch is critical to a...
computers are bad
2025-07-27 a technical history of alcatraz Alcatraz first operated as a prison in 1859, when the military fort first held convicted soldiers....
a month ago
25
a month ago
Alcatraz first operated as a prison in 1859, when the military fort first held convicted soldiers. The prison technology of the time was simple, consisting of little more than a basement room with a trap-door entrance. Only small numbers of prisoners were held in this period,...
Arduino Blog
Introducing the Arduino Nano R4: small in size, big on possibilities We’re excited to welcome a new member to the Arduino Nano family – the Nano R4. Powered by the same...
a month ago
28
a month ago
We’re excited to welcome a new member to the Arduino Nano family – the Nano R4. Powered by the same RA4M1 microcontroller that’s at the core of the popular UNO R4 boards, this tiny-yet-mighty module is here to help you take your projects from prototype to product, smoothly and...
./techtipsy
PSA: part of your Kagi subscription fee goes to a Russian company (Yandex) Today I learned that Kagi uses Yandex as part of its search infrastructure, making up about 2% of...
a month ago
41
a month ago
Today I learned that Kagi uses Yandex as part of its search infrastructure, making up about 2% of their costs, and their CEO has confirmed that they do not plan to change that. To quote: Yandex represents about 2% of our total costs and is only one of dozens of sources we use. To...
Arduino Blog
Alvik Fight Club: A creative twist on coding, competition, and collaboration What happens when you hand an educational robot to a group of developers and ask them to build...
a month ago
31
a month ago
What happens when you hand an educational robot to a group of developers and ask them to build something fun? At Arduino, you get a multiplayer robot showdown that’s part battle, part programming lesson, and entirely Alvik. The idea for Alvik Fight Club first came to life during...
./techtipsy
How a Hibernate deprecation log message made our Java backend service super slow It was time to upgrade Hibernate on that one Java monolithic1 backend service that my team was...
a month ago
39
a month ago
It was time to upgrade Hibernate on that one Java monolithic1 backend service that my team was responsible for. We took great precautions with these types of changes due to the scale of the system, splitting changes into as many small parts as possible and releasing them as often...
Christian Selig
You should repaste your MacBook (but don't) My favorite memory of my M1 Pro MacBook Pro was the whole sensation of “holy crap, you never hear...
a month ago
46
a month ago
My favorite memory of my M1 Pro MacBook Pro was the whole sensation of “holy crap, you never hear the fans in this thing”, which was very novel in 2021. Four years later, this MacBook Pro is still a delight. It’s the longest I’ve ever owned a laptop, and while I’d love to pick up...
Computer Ads from...
Six Game Devs Speak to Computer Games Mag (1984) Meet the Creators of Choplifter, Wizardry, Castle Wolfenstein, Zaxxon, Canyon Climber, and the...
a month ago
Arduino Blog
New AWS x Arduino Opta Workshop: Connect your PLC to the Cloud in just a few steps We’re excited to invite you to a brand-new workshop created in collaboration with Amazon Web...
a month ago
43
a month ago
We’re excited to invite you to a brand-new workshop created in collaboration with Amazon Web Services (AWS). Whether you’re modernizing factory operations or tinkering with your first industrial project, this hands-on workshop is your gateway to building cloud-connected PLCs that...
Abort Retry Fail
The History of Acer A Shy Kid Builds the Taiwanese Tech Industry
a month ago
Arduino Blog
Concept Bytes’ coffee table tracks people and walks itself across a room when called The term “mmWave” refers to radio waves with wavelengths on the millimeter scale. When it comes to...
a month ago
31
a month ago
The term “mmWave” refers to radio waves with wavelengths on the millimeter scale. When it comes to wireless communications technology, like 5G, mmWave allows for very fast data transfer — though that comes at the expense of range. But mmWave technology also has some very useful...
computers are bad
2025-07-06 secret cellular phone numbers A long time ago I wrote about secret government telephone numbers, and before that, secret military...
a month ago
48
a month ago
A long time ago I wrote about secret government telephone numbers, and before that, secret military telephone buttons. I suppose this is becoming a series. To be clear, the "secret" here is a joke, but more charitably I could say that it refers to obscurity rather than any real...
Computer Ads from...
July 4th Weekend Sale Hurry in to save 40%!
2 months ago
Arduino Blog
This automatic emergency braking system protects RC cars It is a story as old as time (or at least the 1960s): kid gets an RC car for Christmas and excitedly...
2 months ago
32
2 months ago
It is a story as old as time (or at least the 1960s): kid gets an RC car for Christmas and excitedly takes it for spin, but crashes it into a wall within five minutes and tears ensue. The automotive industry has cut down on accidents by implementing automatic emergency braking...
Computer Ads from...
Ann Arbor Software's Textra Word Processing The shortest distance between your thoughts and the printed word.
2 months ago
Arduino Blog
This unique electronic toy helps children learn their shapes It isn’t a secret that many kids find math to be boring and it is easy for them to develop an...
2 months ago
37
2 months ago
It isn’t a secret that many kids find math to be boring and it is easy for them to develop an attitude of “when am I ever going to use this?” But math is incredibly useful in the real world, from blue-collar machinists using trigonometry to quantum physicists unveiling the...
./techtipsy
From building ships to shipping builds: how to succeed in making a career switch to software... I have worked with a few software developers who made the switch to this industry in the middle of...
2 months ago
36
2 months ago
I have worked with a few software developers who made the switch to this industry in the middle of their careers. A major change like that can be scary and raise a lot of fears and doubts, but I can attest that this can work out well with the right personality traits and a...
Christian Selig
A slept on upscaling tool for macOS I uploaded YouTube videos from time to time, and a fun comment I often get is “Whoa, this is in...
2 months ago
49
2 months ago
I uploaded YouTube videos from time to time, and a fun comment I often get is “Whoa, this is in 8K!”. Even better, I’ve had comments from the like, seven people with 8K TVs that the video looks awesome on their TV. And you guessed it, I don’t record my videos in 8K! I record them...
Computer Ads from...
Computer Games mag Interviews Don Bluth (1984) Talks about the famous Dragon's Lair
2 months ago
Old Vintage...
Refurb weekend: Gremlin Blasto arcade board totally unreasonable price for a completely untested item, as-was, no returns, with no power supply,...
2 months ago
41
2 months ago
totally unreasonable price for a completely untested item, as-was, no returns, with no power supply, no wiring harness and no auxiliary daughterboards. At the end of this article, we'll have it fully playable and wired up to a standard ATX power supply, a composite monitor and...
Arduino Blog
This machine automatically scans books from cover to cover Hard data is hard to find, but roughly 100 million books were published prior to the 21st century....
2 months ago
26
2 months ago
Hard data is hard to find, but roughly 100 million books were published prior to the 21st century. Of those, a significant portion were never available in a digital format and haven’t yet been digitized, which means their content is effectively inaccessible to most people today....
Computer Ads from...
MBP's Visual COBOL Because Productivity Is The Key To Your Future
2 months ago
Abort Retry Fail
Tandy Corporation, Part 4 The Decline and Fall
2 months ago