1 Oct
2005
1 Oct
'05
8:40 a.m.
Chuck Guzis wrote:
Interesting. I do recall the real IBM hardware using parity, I've
obviously misremembered the parity situation during the days of clones
and 30 pin SIMMs though!
My impression was always that Mac hardware was better designed and less
kludgy, so it seems a little surprising that they'd throw away the need
for parity whilst the "make it as cheap as possible" PC manufacturers
kept it.
cheers
J.
Isn't that
the other way around? Nearly all PCs I've come across don't
care about parity, but the rest of the world always seemed to make use
of it.
Nope, PC's right up through the PS/2 used NMI (int 2) to
memory parity and bus errors, as well as 80x87 exceptions.