17 Nov
2005
17 Nov
'05
12:13 a.m.
C. H. Dickman wrote:
And they could have claimed the 11/45 was a 33MHz machine (that is the
frequency of the master clock crystal). It always amused me that my 11/45
had the same clock frequency as 386 PCs some 25 years later.
Of course as _we_ all know, clock speed is not a particularly useful way
of determining the speed of a machine.
-tony
For the pdp-8/e, it is actually a 20MHz clock driving a 28 bit shift
register from which 4 timing states are generated. The memory cycle is
1.2us.
Now if DEC used that clock speed for marketing, I'd bet they would of
sold more 8's. That is a fast clock.