10 Nov
2008
10 Nov
'08
6:34 p.m.
On 10 Nov 2008 at 17:57, Eric Smith wrote:
The three ROS (Read Only Storage) technologies
developed for the
original System/360 processors were...
Thanks for refreshing my (ever more volatile) wetware. Back in the
1960s, ISTR reading a (red) hardcover book that dealt with custom
microprogramming both the S/360 and the Spectra 70. From what I
remember, the 360/30 was the system of choice for "hobby
microprogrammers" with the Spectrola a close second.
Have you ever run across such a book?
Cheers,
Chuck