Explain the degree to which operating systems should be 
known by consultants. Keep in mind mac, pc, unix things...
what to expect is different, what is the same...
difference between hardware/OS... 

-- targetted at new consultants... 
-- 2 hours. firehose... 
13-5101..

all have used athena (most), a mac, and a pc somewhat..
-- instances of general concepts...
-- they've seen some mac and pc details...
--