Show HN: GentleOS – A pair of hobby OSes for vintage 32-bit and 16-bit PCs

OMG yes please. :-)

Yep, WP for DOS was quick. Rather clunky UI compared to MS Word for DOS, IMHO, but fast. A friend of mine used a simple method to demo its speed: on his cheap monochrome 286 home computer, he loaded the book he was working on -- one big file, a few hundred pages -- and just held down the cursor key to scroll through the whole thing. It kept the entire doc in RAM and the text just blurred as it zoomed through the entire book in under a minute.

Compared then (early 1990s) to Windows where a similar text took tens of minutes, as my faster computer struggled to load in pages of text from disk, render the fonts, etc.

In the late 1980s, Amstrad introduced new CP/M machines, the PCW range:

https://www.cpcwiki.eu/index.php/PCW

They sold for over a decade and shifted about 8 million units. A CP/M computer, in the early Windows era.

Maybe it's time to do that again: a very low-spec machine, but with a crisp e-ink screen and a great premium-grade mechanical keyboard, shipping with a modern FOSS DOS, a compilation of free DOS apps, and some nice friendly graphical launcher. Wrapped up as an easy appliance that doesn't do Internet stuff at all, but makes it trivially easy to save your work on USB media or zap it to modern devices wirelessly.

Form factor of a big late-20th-century laptop, with a massive battery so it can double as a power bank for your phone or something.

I attached a couple of big SCSI drives and ran Windows NT 3.51 Server on it. When not logged in, it only used a couple of megs of RAM for the OS so file serving performance was tolerable -- and the hardware was literally bulletproof. I dropped one down a flight of stairs in my first job. The computer survived but it knocked lumps out of the concrete stairs on the way down.

I guess my point is, 4MB was really a lot of memory around 1992, and fitting a windowing environment in 640K was more the norm, and not an especially outstanding feat. Just think about GEOS and how it ran on the C64... or the Amiga (with a preemptive OS running on 256KB), or the Atari ST...

With 8MB, it was still pretty easy to send it into swap storms, but the range of what I could multitask was greater. Eventually (very late) I replaced it with a 486 with 16MB, and OS/2 absolutely flew on it. Had lots of headroom beyond what I actually used at the time.

If you've ever used a 68000 based Macintosh, you were limited to 4 MB RAM and 1 MB seems to have been more typical. It's in a different league to be sure, black and white graphics and multitasking was optional prior to System 7 (and I don't think multitasking was shipped with the System Software until System 6). That removes a lot of the pressure on memory. On the other hand, you had early Amigas supporting both colour and multitasking. The 1000 shipped with 256 kB RAM and 256 kB ROM (though I think 512 MB RAM was more typical). For an Apples to Apples comparison, the original Macintosh had 128 kB RAM and 64 kB ROM.

Windows 3.x and OS/2 2.x were later in the game, so they were designed for systems with more RAM. They also supported virtual memory. That meant there was less pressure on developers to write memory efficient code. I'm not really qualified to judge realistic memory requirements for OS/2 since I only used Warp on a system with 16 MB RAM, but I recall many people using Windows 95 on systems with 4 MB RAM. The requirements for both operating systems were similar. It's also worth noting that Windows 3.11 was rather late in the game. The system requirements were climbing rather quickly at that point.

I didn't. I checked. I have not.

> go on to lecture me about things you have barely any grasp or memory of,

No, this is not true or accurate. It is a personal attack.

I am a tech professional and I was back then as well. I ran Windows 2.0 and deployed 3.0 in production; I deployed and supported Windows 3.0, 3.1, Windows for Workgroups 3.1 (a different product of little importance except historically), 3.11 (a minor service pack), Windows for Workgroups 3.11 (a totally separate product you don't even mention), as well as NT 3.1, 3.5, 3.51, 4, 2000, XP, Server 2003, Vista, and more.

By casually mentioning something that barely mattered -- Windows 3.11 -- you show me that you know less than me about this stuff, and which I recall vividly and clearly. I still run OS/2 today. I reviewed the current version, because yes it is still alive:

https://www.theregister.com/software/2023/09/04/arcaos-51-gi...

I interviewed the company founder:

https://www.theregister.com/software/2023/01/19/os/2-warp-on...

Contrary to your claims, you are attempting to lecture me and I am not putting up with that. I built and supported entire corporate networks of Windows for Workgroups 3.11 computers, and I found bugs in it I personally filed with Microsoft, before Microsoft even had a website.

Windows 3.11 merits a single paragraph on Wikipedia and even that is substantially incorrect.

https://en.wikipedia.org/wiki/Windows_3.1#Windows_3.11

It did not have any peer-to-peer networking: that is the editors confusing Windows 3.11 with the totally separate Windows for Workgroups 3.11. The distinguishing feature of WfWg is peer-to-peer networking.

You claims are factually incorrect.

Windows 3.11 was not the first mainstream GUI for PCs. Neither was Windows 3.1, a different earlier product. If anything it was DR GEM, which I have written about as well.

https://www.theregister.com/software/2022/08/04/the-many-der...

You'll find my name in the release notes for FreeGEM, because I was involved in that project in the 1990s.

Windows 3.0 was the first mainstream version of Windows.

I was there and told my boss he should order as many copies as he could get because it would sell out on the day of launch (May 1990). We had a queue outside the door before we opened at 9AM that morning. We had a grand total of 17 copies. They all sold in the first 2 minutes. I was right; he was wrong, and so are you.

Windows 3.11 or any from 3.0 to the final 3.2 did not require 4MB of RAM.

Windows 3.0, 3.1, 3.11 and Windows for Workgroups ran perfectly well in 2MB of RAM and did not require 4MB, which was a high-end PC in 1992. You can even force Win3.1 to start in 386 Enhanced Mode on a 1MB RAM PC (with the `/3` switch) and I did it at work almost every day.

3.0 ran fine in 1MB and 3.1 was perfectly usable in that little. As I recall, both wanted a minimum of 1MB for Standard Mode, the 286 protect-mode mode, but it could be forced with a command line switch (`/2` or `/s`) and 2MB for 386 Enhanced Mode.

https://forum.winworldpc.com/discussion/9906/windows-3-0-3-1...

OS/2 2.0 in 4MB was a normal config and it's what I used on all 3 or 4 of my machines which ran OS/2: two Librex ones and my own Sunrace 486DX50 (note, not DX2) laptop. I couldn't afford more memory.

You are dead wrong. I remember this very well indeed, thank you, and that's why I do things like go on stage and tell the world's largest FOSS conference that they're doing it wrong.

https://archive.fosdem.org/2018/interviews/liam-proven/

Sure, OS/2 2.0 as a protect-mode 32-bit OS would be better in 8MB and I am sure much better in 16MB, but I never even saw a PC with 16MB of RAM until over a year later. I deployed NT 3.1 in production in 1993, before its first service pack, and then I ordered that user (our brokerage's Head of Research, Eric) a 16MB PC and the thing cost over £5000.

My editor at PC Pro Magazine in 1995, Derek, got the first 32MB upgrade for any of our desktops, and that was so he could run the shiny new Windows 95.

I remember this stuff in a great deal more detail than you do, and what you think you remember is wrong. Every single number you cite is wrong, both version numbers and memory numbers.

In case you have DOS installed on the hard drive, you can also use GRUB4DOS [1] - just put gentleos.elf on C:\, run grub.exe, then `kernel /gentleos.elf`. You may first need to comment out any upper memory managers from config.sys. A bit of an academic exercise since the kernel still won't fit into memory.

Btw. feel free to reach out to me on my profile email. I'll be busy with work for the rest of the week, but later I may look for some workarounds to get it running on 2 megs.

[1] https://sourceforge.net/projects/grub4dos/

Although, the floppy light does not turn off. Not sure, if this a problem with the OS or my hardware.