Farewell American Computer Magazines

I grew up in a small town with a small library. The next town over had what I thought at the time was a big library, but it was actually more like my town had a tiny library, and the next one over had an actual small library. When I left to go to University, I found out what a real library looked like, and I was mesmerized. Books! Lots of books, many of them written in the current decade. My grades probably suffered from the amount of time I spent in the library reading things that didn’t directly relate to my classes. But there was one thing I found that would turn out to be life-changing: A real computer magazine. Last month, Harry McCracken pointed out that the last two widely-distributed American consumer computer magazines ceased paper publication. It is the end of an era, although honestly, it is more like a comatose patient expiring than a shocking and sudden demise.

Dr. Dobb’s first issue was far from the slick commercial magazine it would become.

Actually, before I had gone to college, I did have a subscription to Kilobaud, and I still have some copies of those. No offense to Wayne Green, but Kilobaud wasn’t that inspiring. It was more an extension of his magazine “73”, and while I enjoyed it, it didn’t get me dreaming. Dr. Dobb’s Journal — the magazine I found in the stacks of my University’s library — was tangibly different. There was an undertone of changing the world. We weren’t sure why yet, but we knew that soon, everyone would have a computer. Maybe they’d balance their checkbook or store recipes. A few people already saw the potential of digital music reproduction, although, I must admit, it was so poor at the time, I couldn’t imagine who would ever care.

I say it was life-changing to discover the few issues of Dr. Dobb’s that were published back then because I would go on to contribute to Dr. Dobb’s throughout its storied history. I wrote the infamous DOS extender series, produced special issues, and, when it went mostly digital, was the embedded system blogger for them for more years than I care to admit. In fact, I have the dubious distinction of having the final blog posted; although the website has suffered enough bit rot, I’m not sure any of it has survived other than, maybe, on the Wayback machine. While I wasn’t with the magazine for its entire 38-year run, I read it for at least 35 and had some function there for about 24 of those.

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Getting A Close-Up View Of Chip Formation With An SEM

When all you’ve got is a hammer, everything looks like a nail. And when you’ve got a scanning electron microscope, everything must look like a sample that would be really, really interesting to see enlarged in all its 3D glory. And this is what [Zachary Tong] delivers with this up close and personal look at the chip formation process.

We’ve got to hand it to [Zach] with this one, because it seems like this was one of those projects that just fought back the whole time. Granted, the idea of cutting metal inside the vacuum chamber of an SEM seems like quite an undertaking right up front. To accomplish this, [Zach] needed to build a custom tool to advance a cutting edge into a piece of stock by tiny increments. His starting point was a simple off-the-shelf linear stage, which needed a lot of prep work before going into the SEM vacuum chamber. The stage’s micrometer advances a carbide insert into a small piece of aluminum 50 microns at a time, raising a tiny sliver of aluminum while it slowly plows a tiny groove into the workpiece.

Getting the multiple shots required to make a decent animation with this rig was no mean feat. [Zach]’s SEM sample chamber doesn’t have any electrical connections, so each of the 159 frames required a painstaking process of advancing the tool, pulling down a vacuum in the chamber, and taking a picture. With each frame taking at least five minutes, this was clearly a labor of love. The results are worth it, though; stitched together, the electron micrographs show the chip formation process in amazing detail. The aluminum oxide layer on the top of the workpiece is clearly visible, as are the different zones of cutting action. The grain of the metal is also clearly visible, and the “gumminess” of the chip is readily apparent too.

For as much work as this was, it seems like [Zach] had things a bit easier than [Ben Krasnow] did when he tried something similar with a much less capable SEM.

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TinyTendo Is A Miniscule Yet Real NES

These days, it’s possible to get a single-board computer the size of a stick of gum. This will give you the power to emulate thousands of games and you can run one off batteries inside a handheld of your own devising. [Redherring32] took an altogether more creative and old-school approach with the TinyTendo, however. This is one pocket-sized NES that actually runs on genuine hardware. (Nitter)

The feat was achieved by drastically reducing the size of the original NES hardware to make it fit into a Game Boy style form factor. Key to this work was creating a custom cut-sized motherboard which uses original Nintendo DIP chips that have been machined down to become more like QFN-style surface mount packages. With that done, the chips can be assembled onto the TinyTendo PCB which is even smaller than a contemporary Raspberry Pi 3. It’s all assembled in a custom case, with USB C for charging and a bright and colorful LCD screen.

The TinyTendo is designed to use mini-cartridges created by [Bucket Mouse], a hacker who’s no stranger to impressive custom Game Boy hardware. By virtue of running genuine NES hardware, there’s also the possibility that the TinyTendo could play full-sized NES carts with a simple adapter.

This project has been a long time in the making; we first looked at [Redherring32]’s efforts back in 2021. It begs the question why the original NES was so big when Nintendo clearly had plenty of space to spare in those hefty DIP packages! It’s amazing what can be done with some creativity and perseverance. Continue reading “TinyTendo Is A Miniscule Yet Real NES”