A student writes:


	Dear Prof. Patt:

	Since we could not finish the discussion of memory in class today
	(Wednesday), we (study group) could not understand what "1st or 2nd
	access" meant in Prob. 9, problem set # 2.  Kindly explain that.

	Thank you,

	<<name withheld>

I got a better idea, how about if we hold off on that problem until after I 
do explain it.  ...in class on Monday.  That, indeed, is the part we did not get to today.  
But, no question.  I expect us to have plenty of time to go over that whole matter carefully 
on Monday.  

The TAs and I actually did talk about that right after class.  They will post a bettter due 
date for the problem set later tonight (if they have not done so already).  At the very least 
Prob. 9 will not be due on Monday.

Yale Patt