A student writes:

	Dr Patt,  In class on wednesday you were talking about DRAM 
	chips and how the capacitors inside them stored charge.  

Yup.
	You said that they had to be refreshed often to prevent leakage.
	I was wondering if the contents of a location had to be refreshed
	even if it was holding a '0' ? Thanks,

Actually, the process of refreshing is to interrogate the cell.  How can 
you know that a zero is stored there if you don't interrogate the cell?

	At the end of class you were talking about a midsummer's night
	dream and the two famous lines from it. The line, "the world
	is a stage..." is actually from "As you like it".  

	All the world's a stage,  And all the men and women merely players:
	They have their exits and their entrances;

			As you like it Act 2, Scene7

	<<name withheld to protect the pedantic one>>

Of course, he is right.  Shame on me.  There I go trying to show 
how literate I am, and falling flat on my face.  

The next line goes:

	And one man in his time plays many parts

Guess I was playing the part of the "mortal" that Puck was referring to 
in the one line that does come from Midsummer Night's Dream.

Well, maybe I will have better luck with computer architecture.

Good luck with the problem set.

See you on Monday.

Yale Patt