No doubt that the IT industry is sexist, but at the same time, I'm pretty sure that a national survey would show that the majority of people who are keen on / personally interested in /actually want to work in IT (in the sort of job most of us here do) are male.
As for being ageist, well, it almost goes without saying that youger people are going to be better to employ in the long-run than more "senior" people. After all, technology moves so fast, and you need someone who can keep up for as long as possible.
Not to provoke "ageist" arguments, but I've seen evidence of this throughout my school here. The
SMT, older staff and even the IT coordinator are all drastically oposing Vista / VLP's / anything new, as they feel they can't cope with such a change and want things to stay the same (i.e. crap but they know how to use what little there is) whereas the technician and I are more than happy with the Vista stuff we have, have great expectations for the Virtua Learning Platform we are setting up, want "helpdesk" software for the staff to report problems to us, and are generally always looking for the next new thing to try out.
It's no suprise that as people get older they dont want to have to 'cope' with new things - thats why the Digital Divide came about (the difference between those who like and use technology (under 45's) and those who see no reason/don't want to use it (over 45's). I'm not sure I got the ages right but that's the jist of the "DD".)
Hopefully, now that everyone is growing up and having to use technology for almost everything (I'm talking about the younger-than-10's here), things like the Digital Divide won't happen so drastically in future, as everyone will know how to use the commonplace forms of technology which are around and most people will not think much of learning something new, as they have done so throughout their life.