On Sun, 11 Apr 2010 22:23:31 -0700, Doug Winterburn wrote:

Then there was the 360/75 with no microcode.

That's the one I started with in '64.

Must have been a first. The /360 was announced in '64. I didn't use
the /75 until '67 (I was a Junior in high school .

It was an IBM punch card I/O Fortran IBM machine we used in college in
'64 - can't remember the IBM model number.

Might have been an 1130 or maybe a 360/20 which came out about the same
time. But '64 does seem a little early - IIRC, both came out in '65 or
'66.

--
Intelligence is an experiment that failed - G. B. Shaw