Back in the day all school systems used Macs, mostly because Apple had the wisdom to cut them sweetheart deals. The idea was to get kids early and make them Mac users.
Now, almost no school systems use them. There are still a few around but the labs are almost exclusively PC. Apple still has the great deals for schools. It's just that now Windows is just as easy to learn and just as reliable. The biggest reason though is once the kids walk out those doors, the rest of the world is using PC's. In the real world there just aren't many places where Macs are used.
