25 Oct
2010
25 Oct
'10
4:50 p.m.
On 25 Oct 2010 at 11:31, Dave McGuire wrote:
Ahh, but by what definition? You're obviously
talking about the
addressing capability. I was talking about data paths, and by that
definition they're all 32-bit.
Addressing width is a red herring. The S/360 addressed 8-bit bytes
with a 24 bit address; the CDC 6600 addressed 60-bit words with an 18
bit (actually 17 until late in the series) address. The CDC STAR
addressed at the bit level and had a 48 bit (virtual) address.
Addressing bus width is pointless unless you know what was being
addressed.
--Chuck