[TUHS] How to do differential/integral on a PDP-7, was: Space Travel

Dave Horsfall dave at horsfall.org
Mon Oct 21 14:55:30 AEST 2019

On Sat, 19 Oct 2019, Michael Kjörling wrote:

> If you want an example that might perhaps be easier to relate to, on the 
> IBM PC, it wasn't until the Pentium that you could actually count on 
> having a floating-point unit available. [...]

Am I the only one who remembers the Defectium (as we called it)?  Intel 
denied the the problem until their noses got rubbed into it, after which 
they instructed Sales to refuse replacements for any chip that failed 
after using a demo program that demonstrated said defect, claiming that it 
would hardly ever happen.

Err, would you fly on an aircraft designed by Defectiums?  Or cross a 
bridge, etc?

-- Dave

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