Re: The Design of Design

John Levine <johnl@taugh.com> schrieb:

They had the insight to see that the 16 fixed sizs registers could be
in fast storage on high end machines, main memory on low end machines,
so the high end machines were fast and the low end no slower than a
memory-memory architecture which is what it in practice was. It was
really an amazing design, no wonder it's the only architecture of its
era that still has hardware implementations.

And they are making good money on it, too.

Prompted by a remark in another newsgroup, I looked at IBM's 2023
annual report, where zSystems is put under "Hybrid Infrastructure"
(lumped together with POWER).  The revenue for both lumped together
is around 9,215 billion Dollars, with a pre-tax margin of more
than 50%.

At those margins, they can certainly pay for a development team
for future hardware generations.