For one thing, if gender discrimination were the major cause of the lack of female software engineers in our society, then one would expect other societies to do better. But that isn't the case. Even in famously egalitarian Sweden, only 30% of computing graduates are female, according to the ACM; Norway, Germany, and the UK actually do worse than the US on that statistic.

http://www.techrepublic.com/blog/programming-and-development...