Classic Chat: Preserving Computer History

Among the many facets of modern technology, few have evolved faster or more radically than the computer.  In less than a century its very nature has changed significantly: today’s smartphones easily outperform desktop computers of the past, machines which themselves were thousands of times more powerful than the room-sized behemoths that ushered in the age of digital computing. The technology has developed so rapidly that an individual who’s now making their living developing iPhone applications could very well have started their career working with stacks of punch cards.

With things moving so quickly, it can be difficult to determine what’s worth holding onto from a historical perspective. Will last year’s Chromebook one day be a museum piece? What about those old Lotus 1-2-3 floppies you’ve got in the garage? Deciding what artifacts are worth preserving in such a fast moving field is just one of the challenges faced by Dag Spicer, the Senior Curator at the Computer History Museum (CHM) in Mountain View, California. Dag stopped by the Hack Chat back in June of 2019 to talk about the role of the CHM and other institutions like it in storing and protecting computing history for future generations.

To answer that most pressing question, what’s worth saving from the landfill, Dag says the CHM often follows what they call the “Ten Year Rule” before making a decision. That is to say, at least a decade should have gone by before a decision can be made about a particular artifact. They reason that’s long enough for hindsight to determine if the piece in question made a lasting impression on the computing world or not. Note that such impression doesn’t always have to be positive; pieces that the CHM deem “Interesting Failures” also find their way into the collection, as well as hardware which became important due to patent litigation.

Of course, there are times when this rule is sidestepped. Dag points to the release of the iPod and iPhone as a prime example. It was clear that one way or another Apple’s bold gambit was going to get recorded in the annals of computing history, so these gadgets were fast-tracked into the collection. Looking back on this decision in 2022, it’s clear they made the right call. When asked in the Chat if Dag had any thoughts on contemporary hardware that could have similar impact on the computing world, he pointed to Artificial Intelligence accelerators like Google’s Tensor Processing Unit.

In addition to the hardware itself, the CHM also maintains a collection of ephemera that serves to capture some of the institutional memory of the era. Notebooks from the R&D labs of Fairchild Semiconductor, or handwritten documents from Intel luminary Andrew Grove bring a human touch to a collection of big iron and beige boxes. These primary sources are especially valuable for those looking to research early semiconductor or computer development, a task that several in the Chat said staff from the Computer History Museum had personally assisted them with.

Towards the end of the Chat, a user asks why organizations like the CHM go through the considerable expense of keeping all these relics in climate controlled storage when we have the ability to photograph them in high definition, produce schematics of their internals, and emulate their functionality on far more capable systems. While Dag admits that emulation is probably the way to go if you’re only worried about the software side of things, he believes that images and diagrams simply aren’t enough to capture the true essence of these machines.

The CHM’s PDP-1 Demo Lab, image by Alexey Komarov.

Quoting the the words of early Digital Equipment Corporation engineer Gordon Bell, Dag says these computers are “beautiful sculptures” that “reflect the times of their creation” in a way that can’t easily be replicated. They represent not just the technological state-of-the-art but also the cultural milieu in which they were developed, with each and every design decision taking into account a wide array of variables ranging from contemporary aesthetics to material availability.

While 3D scans of a computer’s case and digital facsimiles of its internal components can serve to preserve some element of the engineering that went into these computers, they will never be able to capture the experience of seeing the real thing sitting in front of you. Any school child can tell you what the Mona Lisa looks like, but that doesn’t stop millions of people from waiting in line each year to see it at the Louvre.


The Hack Chat is a weekly online chat session hosted by leading experts from all corners of the hardware hacking universe. It’s a great way for hackers connect in a fun and informal way, but if you can’t make it live, these overview posts as well as the transcripts posted to Hackaday.io make sure you don’t miss out.

Put A Little Piece Of The James Webb On Your Wall

The James Webb Space Telescope (JWST) has become something of a celebrity here on Earth, and rightfully so. After decades of development, the $10 billion deep space observatory promises to peel back the mysteries of the universe in a way that simply hasn’t been possible until now. Plus, let’s be honest, the thing just looks ridiculously cool.

So is it really such a surprise that folks would want a piece of this marvel hanging up in their wall? No, it’s not the real thing, but this rendition of the JWST’s primary mirror created by [James Kiefer] and [Ryan Kramer] certainly gets the point across.

A CNC router was used to cut the outside shape from a piece of 1/2 inch MDF, as well as put 1 mm deep pockets in the face to accept the hexagonal golden acrylic mirrors. We originally thought the mirrors were also custom made, but somewhat surprisingly, gold-tinted hex mirrors are apparently popular enough in the home decor scene that they’re readily available online for cheap. A quick check with everyone’s favorite a large online bookseller turned global superpower shows them selling for as little as $0.50 a piece.

With a coat of black paint on the MDF, the finished piece really does look the part. We imagine it’s fairly heavy though, and wonder how it would have worked out if the back panel was cut from a piece of thick foam board instead.

Of course this isn’t a terribly difficult design to recreate if you had to, but we still appreciate that the duo has decided to release both the Fusion 360 project file and the exported STL to the public. It seems only right that this symbol for science and discovery should be made available to as many people as possible.

After a dramatic launch on Christmas Day and a perilous flight through deep space, the JWST has performed impeccably. Even though we’re still a several months away from finally seeing what this high-tech telescope is capable of, it’s already managed to ignite the imaginations of people all over the globe.

PS2 Memory Card ISO Loader Offers Classic Gaming Bliss

It used to be that to play a console game, you just had to plug in a cartridge or put a CD/DVD in the optical drive. But these days, with modern titles ballooning up to as much as 100 GB, you’ve got no choice but to store them on the system’s internal hard disk drive. While that can lead to some uncomfortable data management decisions, at least it means you don’t have to get up off the couch to switch games anymore.

Which is precisely why the MC2SIO project for the PlayStation 2 is so exciting. As [Tito] explains in his latest
Macho Nacho Productions video, this simple adapter lets you connect an SD card up to the console’s Memory Card slots and use that to hold ISOs of your favorite games. With the appropriate homebrew software loaded up, your PS2 becomes a veritable jukebox of classic games.

Continue reading “PS2 Memory Card ISO Loader Offers Classic Gaming Bliss”

NASA Taps Lockheed To Bring Back A Piece Of Mars

Since NASA’s Mariner spacecraft made the first up-close observations of Mars in 1964, humanity has lobbed a long line of orbiters, landers, and rovers towards the Red Planet. Of course, it hasn’t all been smooth sailing. History, to say nothing of the planet’s surface, is littered with Martian missions that didn’t quite make the grade. But we’ve steadily been getting better, and have even started to push the envelope of what’s possible with interplanetary robotics through ambitious craft like the Ingenuity helicopter.

Yet, after nearly 60 years of studying our frigid neighbor, all we have to show for our work boils down to so many 1s and 0s. That’s not to say the data we’ve collected, both from orbit and on the surface, hasn’t been extremely valuable. But scientists on Earth could do more with a single Martian rock than any robotic rover could ever hope to accomplish. Even still, not so much as a grain of sand has ever been returned from the planet’s dusty surface.

But if everything goes according to plan, that’s about to change. Within the next decade, NASA and the European Space Agency (ESA) hope to bring the first samples of Martian rocks, soil, and atmospheric gases back to Earth using a series of robotic vehicles. While it’s still unclear when terrestrial scientists should expect delivery of this interplanetary bounty, the first stage of the program is already well underway. The Perseverance rover has started collecting samples and storing them in special tubes for their eventual trip back to Earth. By 2028, another rover will be deployed to collect these samples and load them into a miniature rocket for their trip to space.

Launching the Mars Ascent Vehicle (MAV).

Just last week NASA decided to award the nearly $200 million contract to build that rocket, known officially as the Mars Ascent Vehicle (MAV), to aerospace giant Lockheed Martin. The MAV will not only make history as the first rocket to lift off from a celestial body other than the Earth, but it’s arguably the most critical component of the sample return mission; as any failure during launch will mean the irrevocable loss of all the samples painstakingly recovered by Perseverance over the previous seven years.

To say this mission constitutes a considerable technical challenge would be an understatement. Not only has humanity never flown a rocket on another planet, but we’ve never even attempted it. No matter what the outcome, once the MAV points its nose to the sky and lights its engines, history is going to be made. But while it will be the first vehicle to make the attempt, engineers and scientists have been floating plans for a potential Martian sample return mission for decades. Continue reading “NASA Taps Lockheed To Bring Back A Piece Of Mars”

Pick and place reels

Pick And Place Hack Chat Reveals Assembly Secrets

These days we’ve got powerful free tools to do CAD and circuit design, cheap desktop 3D printers that can knock out bespoke enclosures, and convenient services that will spin up a stack of your PCBs and send them hurtling towards your front door for far less than anyone could have imagined. In short, if you want to build your own professional-looking gadgets, the only limit is your time and ambition. Well, assuming you only want to build a few of them, anyway.

Once you start adding some zeros to the number of units you’re looking to produce, hand assembling PCBs quickly becomes a non-starter. Enter the pick and place machine. This wonder of modern technology can drop all those microscopic components on your board in a fraction of the time it would take a human, and never needs to take a bathroom break. This week Chris Denney stopped by the Hack Chat to talk about these incredible machines and all the minutiae of turning your circuit board design into a finished product.

Chris is the Chief Technology Officer (CTO) of Worthington Assembly, a quick turn electronics manufacturer in South Deerfield, Massachusetts that has been building and shipping custom circuit boards since 1974. He knows a thing or two about PCB production, and looking to help junior and mid-level engineers create easier to manufacture designs, he started the “Pick, Place, Podcast” when COVID hit and in-person tours of the facility were no longer possible. Now he says he can tell when a board comes from a regular listener by how many of his tips make it into the design.

So what should you be doing to make sure your board assembly goes as smoothly as possible? Chris says a lot of it is pretty common sense stuff, like including clear polarity indicators, having a legible silkscreen, and the use of fiducial markers. But some of the tips might come as something of a surprise, such as his advice to stick with the classic green solder mask. While modern board houses might let you select from a rainbow of colors, the fact is that green is what most equipment has been historically designed to work with.

That black PCB might look slick, but can confuse older pick and place machines or conveyors which were designed with the reflectivity of the classic green PCB in mind. It also makes automated optical inspection (AOI) much more difficult, especially with smaller component packages. That said, other colors such as white and red are less of a problem and often just require some fine tuning of the equipment.

He also pulled back the curtain a bit on how the contract manufacturing (CM) world works. While many might have the impression that the PCB game has moved overseas, Chris says orders of less than 10,000 units are still largely handheld by domestic CMs to minimize turnaround time. He also notes that many assembly houses are supported almost entirely by a few key accounts, so while they may be juggling 50 customers, there’s usually just two or three “big fish” that provide 80% of their business. With such a tight-knit group, he cautions CMs can be a bit selective; so if a customer is difficult to work with they can easily find themselves on the short end of the stick.

While the Hack Chat is officially only scheduled for an hour, Chris hung out for closer to three, chatting with community members about everything and anything to do with electronic design and production. His knowledge and passion for the subject was readily apparent, and we’re glad he was able to make time in his schedule to join us.


The Hack Chat is a weekly online chat session hosted by leading experts from all corners of the hardware hacking universe. It’s a great way for hackers connect in a fun and informal way, but if you can’t make it live, these overview posts as well as the transcripts posted to Hackaday.io make sure you don’t miss out.

Hackaday Podcast 155: Dual Integrating Spheres, More Magnetic Switches, PlottyBot, Red Hair In Your Wafers

This week Hackaday Editor-in-Chief Elliot Williams and Managing Editor Tom Nardi take a close look at two pairs of projects that demonstrate the wildly different approaches that hackers can take while still arriving at the same conclusion. We’ll also examine the brilliant mechanism that the James Webb Space Telescope uses to adjust its mirrors, and marvel over a particularly well-developed bot that can do your handwriting for you. The finer points of living off home-grown algae will be discussed, and by the end of the show, you’ll learn the one weird trick to stopping chip fabs in their tracks.

Take a look at the links below if you want to follow along, and as always, tell us what you think about this episode in the comments!

Direct Download (~70 MB)

Continue reading “Hackaday Podcast 155: Dual Integrating Spheres, More Magnetic Switches, PlottyBot, Red Hair In Your Wafers”

3D Printed Maglev Switches Are So Hot Right Now

It doesn’t happen all the time, but over the years we’ve noticed that once we feature a project, a number of very similar builds often find themselves in our tip line before too long. Of course, these aren’t copycats; not enough time has passed for some competitive maker to spin up their own version. No, most of the time it’s somebody else who was working on a very similar project in isolation, and who now for the first time realizes they aren’t alone.

Thanks to this phenomenon we’re happy to report that yet another 3D printable magnetic levitation switch has come to light. Developed by [famichu], this take on the concept is markedly different from what we’ve seen previously, which in a way makes the whole thing even more impressive. It’s one thing for multiple hackers to develop similar projects independently of each other, as the end goal often dictates the nature of the design itself. But here we’re seeing a project that took the same core concepts and ran in a different direction. Continue reading “3D Printed Maglev Switches Are So Hot Right Now”