I perfer to
work with older systems (386s are fun!) [...]
I am curious as to what is
'fun' about 386s (I assume you mean PC
compatibles, and not, for example, Sequent multi-processor machines).
Well, I'm not the person you're responding to, but I have some
possible suggestions.
So the real low-level hardware/software hackability of
these machines
would seem to be little different from a more modern PC.
I'm not so sure.
While I've never tried, I'd lay decent odds that it's a good deal
easier to cobble together a working ISA board than a working PCI board.
Thus, having an ISA bus makes the machine significantly more hackable
in at least one reasonably plausible way. (386s can generally be
assumed to be ISA machines, even though there are plenty of more recent
machines with ISA.)
Also, wasn't 386 instruction execution time predictible to the
clock-cycle level (as opposed to more recent machines with caches and
execution units involving pipelined x86 emulators running on RISC cores
and such, which greatly complicate execution time prediction)? That
makes them easier for doing things involving precise timing.
And, of course, it's entirely possible that 16-year-old happens to be
emotionally attached to 386s for reasons completely unrelated to their
technical merits or lack thereof - perhaps there's some cherished game
that doesn't run decently on anything newer (I've seen some such), or
perhaps that person's first machine was a 386, or, well, there are lots
of possibilities.
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