12 Nov
2006
12 Nov
'06
1:16 p.m.
On 12 Nov 2006 at 13:31, Jim Leonard wrote:
The only thing that could substantiate "5 times
faster" between 4.77MHz
8088 and 6MHz 80286 would be a faster I/O subsystem, like a hard drive
with a 2:1 or 1:1 interleave. But that is outside of the core claim.
That wasn't my claim; I said that "had IBM decided to release the
5170 as an 8 MHz machine..." when comparing with a 5160. Right
there, you start off with a cycle time that's nearly twice as fast.
If anyone has a 5150/60 with an 4.77MHz CPU clock and an 8 MHz 5170
handy I'd be interested to hear the results of SI and SPEED numbers.
I can probably do it if no one volunteers.
Cheers,
Chuck