Modern computer users sent back in time...

["N.N. Thayer" <nnthayer@hotmail.com>]

Here's a question that's bounced around in my head for a while.

The scenario is: take a bunch of programmers, system administrators,
hardware techies, et cetera and unceremoniously dump them in the
1960's.  They come only with their existing knowledge, and must adjust
it accordingly if they are to continue along their line of work.
Assume that situational side-concerns such as money, ID, and living
space are irrelevant.

What is the manner of this acclimation to a previous generation of
technology?  What challenges are faced?  Would someone in a specific
occupation, such as a programmer, be more likely to pass the
inevitable weeding process?