"I want to make games!" to "This shit is hard, I'm gonna get a business degree."
As it happens when you have projects that take about 4x (or more) the amount of time as your friends majors that takes a toll. People would rather be partying than writing code. Maybe our CS1 was a bit too hard (we've had many discussions with the profs about this and the attrition rate and what to do about it), but everyone who finished freshmen year graduated in our class. It prepared us well, but it was too hard for most.
"Angersock," he said," do you know how many women there were in my first year?"
I thought for a second. "I don't know, maybe 20 or 30?".
"About half my class of around 80 or so. Do you know how many I graduated with?"
"Erm, 10 or 15?"
"Try 3. Does the phrase 'hunted to extinction' mean anything to you?"
EDIT: Never mind, I looked it up, which I should have done in the first place. CS3 is the optional intro CS/programming class ("Intro to Symbolic Programming"), and CS10 is "The Beauty and Joy of Computing", which seems designed for non-majors getting an introduction to "the history, social implications, great principles, and future of computing", with a gentle introduction to programming in a graphical language.
I guess that makes the article substantially less significant/interesting.
Whoops never mind, I just saw the response to my other comment saying that the course catalog is out of date. Never mind then.
At my university I would guess that it was about a quarter women. They were evenly distributed amongst the caliber of grads. Of the top 8 or so in my class (smaller program) 2 were women.
CS10 is a class designed mostly for non majors, who are interested in Computer Science; CS61a is the first required class for the major. I know of a bunch of CS guys with their girlfriends in CS10. A lot of people who are already set on taking CS as their major go directly into CS61a, skipping CS10, and this accounts for a lot of the gender ratio difference in CS10. If you look at a class like CS162, you can see the gender ratio of the people who are actually sticking through the major.
This doesn't mean as much as graduation rates, etc.