On 01/14/2017 06:31 AM, dwight wrote:
  I would say he doesn't like the 1620. 
I'm familiar with the document.  For all of that, note that the 1620 and
its industrial version, the 1710, was hugely popular and a great deal of
useful work was accomplished with it.
Was the CADET slow?  Sure, but it was fast enough--and eminently
programmable in machine language, even for a student.  Some of the same
criticisms could be levied against the venerable 1401, none of which
prevented its application in the real world.
--Chuck