What is a 'minimum NAND expression'

[seang]

I'm just beginning microcontrollers, and we're quickly going over topics from introductory digital logic. On our review, it says to know how to find minimum NAND and NOR expressions for an n bit function. I have no idea what this is.

Say I'm given a function in canonical form. What am I supposed to do? I know I can use a Kmap to find a minimum cost function; is this related to the minimum NAND and NOR?

 

[berkeman]

This URL from a thread a couple days ago may help:

http://www.vias.org/feee/karnaugh_09.html

 

[seang]

Awesome, definitely will get me started. Thank you much.