FreeDOS on physical hardware

FreeDOS on physical hardware

Vintage computing has gotten expensive. One way to enjoy the vintage computing experience on a budget is to install FreeDOS on aging physical hardware that isn’t quite old enough to be collectible, building what some people call a time machine. I had someone ask me on Mastodon to walk them through the process.

The goal was to walk someone through a project that would be affordable and not require someone to have a storage unit full of hardware already. If you’re ready to graduate from DOSBox or FreeDOS on VirtualBox and onto bare metal, this project is for you.

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Fixing a sticky Teac 5.25 inch floppy drive

Fixing a sticky Teac 5.25 inch floppy drive

I have a Teac FD-55BV 5.25″ 360K floppy drive for my Tandy 1000EX. Teac drives tend to be very reliable, but this one had one problem. The spindle clamp would stick when I opened the lever and tried to remove the disk. Here’s how I fix a sticky floppy drive, and you can too.

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Stereo SID for Commodore 64 and 128

Stereo SID for Commodore 64 and 128

The Commodore 64 came equipped with a powerful sound chip called the SID, acronym for sound interface device. In its later years, one of the ways Commodore enthusiasts extended the usefulness of their machines was by adding a second sound chip. Let’s talk about this capability and how many people took advantage of it.

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IBM PC DOS 2000: An underrated DOS

IBM PC DOS 2000: An underrated DOS

What’s the ideal operating system to run on a retro PC? There are several names you hear over and over again. MS-DOS 6.22 is probably the most frequent option. MS-DOS 3.31 is one that comes up from time to time. Then there’s FreeDOS, and SvarDOS, an open source DOS optimized for 8088-class PCs. I don’t think enough people talk about IBM PC DOS 2000. I think it’s an underrated choice.

IBM PC DOS 2000 was derived from the same code base as MS DOS 6.22, so it has a very high degree of compatibility with the most common and most popular retro DOS. But it also has some advantages.

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IBM 4863 monitor

IBM 4863 monitor

The IBM 4863 matched the industrial design of the PCjr, but was functionally very similar. And it wasn’t really priced any lower than it counterpart for the IBM PC. It’s retail price was $680, and the RGB cable to connect it to a PCjr was an additional $20.

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Clear CMOS password on an Intel AL440LX

Clear CMOS password on an Intel AL440LX

I was restoring an old Micron Clientpro 766Xi when I ran into a corrupt BIOS password, so I couldn’t do much with the system. Micron used a slightly modified Intel AL440LX motherboard in these systems. So here’s how to clear a CMOS password on an Intel AL440LX. Other P2-era Intel boards will be similar.

The Intel AL440LX has a jumper at the front of the board. Unlike some other systems, you have to change the position of the jumper and turn the power on.

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Write files to an img file in Windows

Write files to an img file in Windows

Creating an IMG file of a DOS disk from individual files isn’t something you have to do often, but when you do, it’s a bit of a hassle. But it’s doable. Here’s how to write files to an img file in Windows, which you can then read with a Gotek floppy emulator running Flashfloppy.

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Atari 400 vs Commodore VIC-20

Atari 400 vs Commodore VIC-20

When we think of Atari versus Commodore, the Commodore 64 generally comes to mind. But there is an argument that the Commodore VIC-20 did as much damage to Atari as the Commodore 64 did, and possibly more. Let’s compare and contrast the Atari 400 vs Commodore VIC-20, which is a classic case of winning the battle but losing the war.

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Soup up your Tandy 3-in-1 with a V20

Soup up your Tandy 3-in-1 with a V20

I’ve written before about my Tandy 1000EX with a Tandy 3-in-1 expansion to add memory, a serial port, and compact flash. And I’ve written before about the NEC V20 CPU. But did you know you can use them together to nearly double your compact flash storage’s throughput? Here’s how.

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Wolfenstein 3D for CGA and Tandy

Wolfenstein 3D for CGA and Tandy

On Friday, January 20, 2021, a new version of Wolfenstein 3D was released for really old hardware. Indie developer James Howard revised the 30-year-old id Software title to function on CGA and Tandy graphics and an 8088 CPU. So now Wolfenstein 3D joins the ranks of about 900 known titles to use Tandy graphics and/or sound.

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