[ElmntOfSurprise]

You mean that boys like computers more --> they buy more computers (or nag their parents about getting one), or that parents are more prone to give computers to boys --> girls never have the chance to get as interested?

Interestingly, teenage girls seem to have more access to (desktop) computers than boys have nowadays: http://www.pewinternet.org/files/old-media/Files/Reports/201...

[cropsieboss]

Just like teenage girls had more instrument playing experience than boys during an era when blues and jazz were starting to develop. Yet men lead the genre.

[jacalata]

The second one.