Are you talking about professional well made IoT devices designed for corporate management? Because holy shit are you wrong about general consumer IoT devices doing no listening. There's a reason for the running joke that the S in IoT stands for security.

In fact much of the community driven IoT interfaces for tinkerers rely on the fact that someone has hacked a device almost universally via an active open listening port to force it to work with something other than it's Cloud service.

Your best beat at security: Isolate them on your network and firewall your inbound connections.

From the most current OS/2 release:

"Hardware Requirements
Intel Pentium Pro or higher, or an AMD Athlon or higher. 64 Bit CPUs are supported (however ArcaOS will run in 32-bit mode). Computers with ARM CPUs are not supported. Apple Computers are not supported (regardless of CPU). The Vortex86 CPU is not sufficiently compatible to run ArcaOS and is not supported."

i.e. minimum hardware requirements are a 686 instruction set.

Linux isn't suitable as a real-time OS now either strictly speaking. In fact that one of the top hits from a search on Linux RTOS is a paper from NASA (from a comparatively recent 2019) discussing the performance of Linux with every RTOS relevant kernel feature set into the most ideal position. Their conclusion was... well you probably will hit your event deadline if you throw fast enough hardware at it, but it is still nothing like a true RTOS.

Netanyahu, is that you? Was this lie about nukes they never had promised to you 3,000 years ago?

I admit that it's not intelligent to continue to waste time talking to someone like you, who thinks you can't do things I've done because you have no practical experience.

HAHAHHAHAHAHAHAHHAHAHAHHA

HAHAHHAHAHAHHAHAHAHHAHAHHAHAHAHHAHAHHAHAHHA

Keep going, this is precious

386 and 486 CPUs were back in the day. I used a commodore 64 for most of my school life and a word processor / typewriter when I needed something that could print text better than the ancient thermal printer I had (no joke I had an okidata thermal printer for my commodore. Quality was good but when you eventually couldn't get the regular paper you had to buy the rolls and I had the jury rig a feeder)

A lot of people complain about the Sega 32x and Atari Jaguar ports of Doom but it was mind-blowing to be able to play Doom on $300 worth of hardware in 1995. If you wanted a computer that could match the performance of even a Sega 32x you were dropping at least $1,500. Literally five times the price.

But I do remember when prices came down after I got back into computers after a bit. Picking up a 486 DX 100 for about $150 and then going to a computer shop asking for a Vesa local bus video card for it and the guy just pulled it out of a junk pile and gave it to me. Remember going home and booting up primal rage and X-Men children of the atom on that thing and being blown away with that computer could do. Terminal velocity .

Not anyone who is bombing schools, Nazi.

I will remind you that the Nazis were inspired by the USA. There is no universe in which the USA is the good guys.

Oh, are you one of the stupid clowns I've corrected on b and B? I bet you are.

This is bullshit. A percent of a percent of 486s had more than 16MB.

Those who would give up freedom and security to attack an adversary who isn't even a threat are stupid fucks.

You're conflating Windows versions as if they were all the same, Linux only allows that if you're root and there is no good reason for it to be otherwise, etc. and I specifically stated that one of those OSes has no security, obviously MacOS. Thanks for proving you don't know shit about shit and no one should listen to you.

Impossible to figure out what you think you meant while you're mixing tenses. 486s with more than 16GB of RAM were extremely scarce and now they are even scarcer, they are not more common. Probably they are a larger percentage of the remaining 486s, but that is not the same thing as there being plenty around.

Bullshit like this is why anonymous posting shouldn't exist.

Who is still using a 486 and also needs modern kernel features? Let them run an older kernel. They are going to have to run older software anyway because a 486 with more than about 16MB is rare, and modern Linux distributions require multiple GB of RAM.

This is not even vaguely close to true, although classic MacOS was designed like security didn't matter. All of these operating systems were built after the invention of the computer virus and two of them had security baked in. The third required two antivirus programs for relative safety (gatekeeper and disinfectant) because it had no security, which was always stupid. The modern MacOS is descended from an OS where security was understood to matter. The state of the art in computer security was simply undeveloped compared to what it is today.