29 Jun
2007
29 Jun
'07
11:34 a.m.
On Friday 29 June 2007, Sridhar Ayengar wrote:
Brent Hilpert wrote:
If you're gonna claim that S/360 is 24-bit, 370/XA and ESA/390 are
31-bit, you might as well claim that 8080/8085/z80 were 16bit CPUs, or
that an 8088 was a 20-bit CPU.
Everything from a S/360 model 25 through a 9672-ZZ7 s/390 were all
32-bit "CPU"s as far as I'm concerned.
zArchitecture is 64-bit of course... unless you're running it in ESA/390
mode. :)
Pat
--
Purdue University Research Computing --- http://www.rcac.purdue.edu/
The Computer Refuge --- http://computer-refuge.org
Sridhar Ayengar wrote:
370/XA, ESA/370 and ESA/390. Those aren't "processors". Those are
"processor architectures" for each of which there were several
implementations. Brent Hilpert wrote:
Processor? Some other oddball values from that era:
- BINAC: 31 bits
I don't know if you can call 31-bit "oddball". IBM literally made
thousands upon thousands.