Details, details ... 128 or 120, their both greater than 64 [yes, it is
120]. It's a long way to the moon and truncation errors in the
numerical integration summed to unacceptable levels on the UNIVAC 1108
[64-bit DP FP] machines. I just couldn't pass up the chance to point
out that "newest isn't always *that* new." [:-))
<rhetoricalquestion>Speaking of "newest," I haven't turned on my Win10
laptop in several weeks [maybe a month or a little more]. I did at
breakfast today, it is now lunchtime and it's still applying updates ...
apparently 1 at a time. Why can't it do 4 at a time, one in each
core?</rhetoricalquestion>
73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County
On 4/13/2018 12:48 PM, brian wrote:
My failing memory seems to recall that the CDC6600 used 60 bit math
for floating point single precision operations.
https://en.wikipedia.org/wiki/CDC_6600 seems to confirm that.
They were great machines, till the 7600 then the Cray computers showed
up...
It was interesting to bring these machines to their knees by physics
calculations that took days to run. They had to be run on weekends to
keep the rest of the lab happy.
73 de Brian/K3KO
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