- Speed -
emulators are usually slower than the real thing. [...]
It depends on the vintage
of the original equipment and the emulator.
Well, of course. I _did_ specifically mention that I was talking about
SBus-era Suns.
And I don't have to fool with noisy equipment with
klunky peripherals
(particularly printers) when emulation is used.
True. Emulation does have its place. But talking about that
wouldn't've addressed ARD's puzzlement.
- Hardware
compat - I have some oddball SBus cards. [...]
On the other hand, an emulator can
allow you to emulate an exotic
peripheral that you might not even be able to find.
But only in an emulated world. As a simple example, I have an SBus
card that does HP-IB (or GP-IB, or perhaps both - it's been long enough
I'm not clear on how similar they are any longer). An emulator might
be able to emulate the card from the host-software perspective, but
it's not going to be able to actually talk to other HP-IB (resp. GP-IB)
peripherals over the emulated card - unless it's backed by a real
interface, of course.
I'm certainly not going to argue that emulation, including hardware
emulation, is valueless. But that isn't what Tony was asking about.
- Reliability
- as I think I've mentioned before, peecee-class
machines account for a rather disproportionate fraction of the
hardware failures I've experienced.
Again, pick your "PeeCee"
carefully and you can easily wind up with
something that not only is more reliable, but much quieter and less
power-hungry than your dinosaur.
Perhaps - but only at substantial additional cost (whether money or
called-in favours or effort put into digging for sources or whatever).
Reliability isn't free.
Of course, there is a place for reliable peecees. I'm not going to
argue against them; in fact, I wish they were more popular. But they
are not relevant to my explaining to Tony why I behaved in ways he
found so puzzling.
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