To expand, Women are still a minority in a lot of areas of work where physical differences are mostly unimportant-E.g. truck driving, skilled construction workers (carpenters/electricians), etc. Other engineering fields (eg EE) are similarly male-dominated, but being an EE or whatever isnt "sexy" in the way tech is, so it doesnt get as much attention. By "sexy" I mean the software industry has lots of high-paying jobs, growth, job security (if you are good at what you do), and, most importantly, publicity. Facebook essentially didnt exist 6 years ago, now they have 500m users every tiny change they make is "big" news. If you can create your own company (which , relative to other industries, is incredibly easy to do), you get lots more money and publicity. This makes it a popular target for the "Why arent there more women in industry x" discussion.