Older versions of QNX might be hard to track down as QNX was formerly very tightly licensed.

There's the 1989 demo disk that exists as a 360k floppy image, the V4 1.44MB network and modem demo disks and an earlier v1 demo that only needs 6MB of RAM instead of the 8MB needed by the latest v4 demos.
The christmas edition is nowhere to be found though, been searching for it for a long time but all links are dead ends.

Errius wrote:

Are there software that runs on 8086 but not 8088? I think the only difference is speed. […]
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Are there software that runs on 8086 but not 8088? I think the only difference is speed.

Norton SI 4.5 Advanced Edition Computing Index (CI) for:

8 MHz 8088: 1.7
8 MHz 8086: 1.9

As far as I know, from the "which software running on which" point of view, there is no difference. But they are different CPUs, just in a similar way 386 and 386SX are not the same. 8088 is actually roughly like a 8086SX. 🤣

tayyare wrote:

Errius wrote:

Are there software that runs on 8086 but not 8088? I think the only difference is speed. […]
Show full quote

Are there software that runs on 8086 but not 8088? I think the only difference is speed.

Norton SI 4.5 Advanced Edition Computing Index (CI) for:

8 MHz 8088: 1.7
8 MHz 8086: 1.9

As far as I know, from the "which software running on which" point of view, there is no difference. But they are different CPUs, just in a similar way 386 and 386SX are not the same. 8088 is actually roughly like a 8086SX. 🤣

The only real difference is that the 8088 is a 16/8 Address/Data CPU like the Z80, 6502, and many other CPUs of the time. The 8086 is a 16/16 Address/Data bus CPU, meaning it could TECHNICALLY run 16 bit ISA.

At one time I actually had an 8086 machine with 16-bit ISA slots in it, actually. I never could get it to boot, but that's because it was missing a graphics card and at the time, I couldn't find any ISA ones. Kinda wish I'd kept it, actually.