Picking An Old Operating System

August 23, 2025 by Al Williams 2 Comments

We usually at least recognize old computer hardware and software names. But [Asianmoetry] taught us a new one: Pick OS. This 1960s-era system was sort of a database and sort of an operating system for big iron used by the Army. The request was for an English-like query language, and TRW assigned two guys, Don Nelson and Dick Pick, to the job.

The planned query language would allow for things like “list the title, author, and abstract of every transportation system reference with the principal city ‘Los Angeles’.” This was GIM or generalized information management, and, in a forward-looking choice, it ran in a virtual machine.

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Back To The 90s On Real Hardware

August 22, 2025 by Bryan Cockfield 6 Comments

As the march of time continues on, it becomes harder and harder to play older video games on hardware. Part of this is because the original hardware itself wears out, but another major factor is that modern operating systems, software, and even modern hardware don’t maintain support for older technology indefinitely. This is why emulation is so popular, but purists that need original hardware often have to go to extremes to scratch their retro gaming itch. This project from [Eivind], for example, is a completely new x86 PC designed for the DOS and early Windows 98 era.

The main problem with running older games on modern hardware is the lack of an ISA bus, which is where the sound cards on PCs from this era were placed. This build uses a Vortex86EX system-on-module, which has a processor running a 32-bit x86 instruction set. Not only does this mean that software built for DOS can run natively on this chip, but it also has this elusive ISA capability. The motherboard uses a Crystal CS4237B chip connected to this bus which perfectly replicates a SoundBlaster card from this era. There are also expansion ports to add other sound cards, including ones with Yamaha OPL chips.

Not only does this build provide a native hardware environment for DOS-era gaming, but it also adds a lot of ports missing from modern machines as well including a serial port. Not everything needs to be original hardware, though; a virtual floppy drive and microSD card reader make it easy to interface minimally with modern computers and transfer files easily. This isn’t the only way to game on new, native hardware, though. Others have done similar things with new computers built for legacy industrial applications as well.

Thanks to [Stephen] for the tip!

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Now That Commodore Is Back, Could Amiga Be Next?

August 21, 2025 by Tyler August 43 Comments

Now that Commodore has arisen from the depths of obscurity like Cthulhu awoken from R’lyeh, the question on every shoggoth’s squamose lips is this: “Will there be a new Commodore Amiga?” The New Commodore is reportedly interested, but as [The Retro Shack] reports in the video embedded below, it might be some time before the stars align.

He follows the tortured history of the Amiga brand from its origins with Hi-Toro, the Commodore acquisition and subsequent Atari lawsuit, and the post-Commodore afterlife of the Amiga trademark. Yes, Amiga had a life after Commodore, and that’s the tl;dr here: Commodore might be back, but it does not own the Amiga IP.

If you’re wondering who does, you’re not the only one. Cloanto now claims the name and most of Amiga’s IP, though it remains at loggerheads with Hyperion, the distributors of AmigaOS 4. If you haven’t heard of them, Cloanto is not an elder god, but in fact the group behind Amiga Forever. They have been great stewards of the Amiga heritage over the decades. Any “new” Amiga is going to need the people at Cloanto on board, one way or another. That doesn’t mean it’s impossible– the new Commodore might be able to seduce Cloanto into a merger, or even just a licensing agreement to use the name on reproduction or new hardware.

While a replica C=64 was a no-brainer for the revived Commodore brand, it’s not quite so clear what they should do with the Amiga name. An FPGA reproduction of the popular A500 or A1200? Would anyone want newly-made 68000-based machines, or to follow Hyperion and MorphOS to now-outdated generations of PowerPC? All of these have been proposed and argued over for years.

We’d love to see something fully new that captures the spirit of the bouncing ball, but it’s hard to imagine bottling magic like that in the twenty-first century. For now, Amiga lies dreaming– but that is not dead which can eternally lie, and we hold out hope this Great Old One can return when the stars are right.

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The PC In Your Pico

August 18, 2025 by Jenny List 33 Comments

We’re all used to emulating older computers here, and we’ve seen plenty of projects that take a cheap microcontroller and use it to emulate a classic home computer or gaming platform. They’re fun, but serve mostly as a way to relive old toys.

As microcontrollers become faster though it’s inevitable that the machines they can emulate become more powerful too, so we’re moving into the realm of emulating productivity machines from years past. An example is [Ilya Maslennikov]’s pico-286, which as its name suggests, is a 286 PC emulator for the Raspberry Pi Pico.

It has an impressive set of sound and video card emulations, can drive either a VGA or an HDMI monitor, and uses a PS/2 keyboard and mouse. If DOS games are your thing it should provide what you want, but it’s caught our eye because there was a time when a 286 DOS PC was a productivity machine. There’s a huge library of still-useful software for DOS, and thus the prospect of a handheld DOS PC still has some appeal. We’d love to see someone put this in a badge.

MS-DOS may no longer be for sale, but there are several ways to land an open-source DOS in 2025. FreeDOS is something of a powerhouse.

Commodore Is Back Selling New C64s, But Should You Buy Them?

August 17, 2025 by Maya Posch 103 Comments

It’s hard to argue with nostalgia, but you can toss a bucket of cold facts over it. In the case of the recent rescuing of the Commodore brand from the clutches of relabeling of generic electronics by [Perifractic] of Retro Recipes, we got [The Retro Shack] doing the proverbial bucket dumping in a new video. Basically the question is whether the fresh Commodore 64 offerings by the new-and-improved Commodore are what you really want, or need.

The thing is that over the decades many people have created all the bits that you need to build your own classical C64, or even buy one off-the-shelf, with people like [bwack] having reverse-engineered the various C64 mainboards. These can be populated with drop-in replacements for chips like the SID, VIC-II, CIAs and others that are readily available, along with replica cases and keyboards. If you crave something less bulky and complex, you can run a bare metal C64 emulator like BMC64 on a Raspberry Pi, or just run the VICE emulator on your platform of choice. There’re also options like the full-sized TheC64 and Ultimate 64 Elite II systems that you can buy ready to go.

Basically, there is a whole gamut of ways to get some part of the C64 experience, ranging from emulator-only to a full hardware DIY or pre-assembled format. Each of which come with their own price tag, starting at $0 for running VICE on your existing system. With so much choice we can only hope that the renewed Commodore company will become something more than Yet Another C64 Experience.

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The Nibbler Was Quite A Scamp

August 16, 2025 by Al Williams 39 Comments

The late 1970s were an interesting time for microcomputers. The rousing success of things like the 8080, the Z80, the 6800, and the 6502 made everyone wanted a piece of the action. National Semiconductor produced its SC/MP. That was technically the Simple Cost-effective Micro Processor, but it was commonly known as Scamp. There were several low-cost development boards built around this processor and [Hello World] is looking at Digikey’s “Nibbler” which was a fairly nice computer for only $150. Check it out in the video below.

The SC/MP was made to be cheap. It had a strange bank switching scheme reminiscent of the Microchip PIC 16F family. It also had, like a lot of old discrete computers, a serial ALU, which made it slower than many of its contemporaries. It did have good features, though. It was cheap and required very few extra parts along with a single 5 V supply in the second and subsequent versions. In addition, it had pins that were made for connecting more than one CPU, which was quite a feat for those days.

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Teletext Around The World, Still

August 15, 2025 by Al Williams 17 Comments

When you mention Teletext or Videotex, you probably think of the 1970s British system, the well-known system in France, or the short-lived US attempt to launch the service. Before the Internet, there were all kinds of crazy ways to deliver customized information into people’s homes. Old-fashioned? Turns out Teletext is alive and well in many parts of the world, and [text-mode] has the story of both the past and the present with a global perspective.

The whole thing grew out of the desire to send closed caption text. In 1971, Philips developed a way to do that by using the vertical blanking interval that isn’t visible on a TV. Of course, there needed to be a standard, and since standards are such a good thing, the UK developed three different ones.

The TVs of the time weren’t exactly the high-resolution devices we think of these days, so the 1976 level one allowed for regular (but Latin) characters and an alternate set of blocky graphics you could show on an expansive 40×24 palette in glorious color as long as you think seven colors is glorious. Level 1.5 added characters the rest of the world might want, and this so-called “World System Teletext” is still the basis of many systems today. It was better, but still couldn’t handle the 134 characters in Vietnamese.

Meanwhile, the French also wanted in on the action and developed Antiope, which had more capabilities. The United States would, at least partially, adopt this standard as well. In fact, the US fragmented between both systems along with a third system out of Canada until they converged on AT&T’s PLP system, renamed as North American Presentation Layer Syntax or NAPLPS. The post makes the case that NAPLPS was built on both the Canadian and French systems.

That was in 1986, and the Internet was getting ready to turn all of these developments, like $200 million Canadian system, into a roaring dumpster fire. The French even abandoned their homegrown system in favor of the World System Teletext. The post says as of 2024, at least 15 countries still maintain teletext.

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