CSC151 2009F, Class 54: What is Computer Science? Revisited

Admin:
* Exams due.
* Tomorrow is our "What did I learn in CSC151 this semester?" day.
* Friday is wrapup day.  
  * You get to grade me 
  * I give you your grades 
  * We debrief
* Even more extra credit
  * Please fill out the post-course survey at 
    http://www.grinnell.edu/academic/psychology/faculty/dl/risc/
  * Optional "course assessment" form (in certain circumstances)

Overview:
* What is CS?
* Subfields of CS.
* Related Disciplines.