Ultimately, the problem isn't too few books. It's that we're using books where stone tablets work just fine.
That being said, lets fast forward. Computers are an absolutely wonderful tool for classrooms. Think, if this school district can't afford much in the way of technology, you can probably assume their encyclopedias are equally out of date.
Back when I graduated from high school, the latest encyclopedia we had in our library was 4 years out of date.
We live in a dynamically evolving, changing world where something can be different from one day to the next. New discoveries are made daily. I have to disagree with your opinion, that computers are only useful for intrinsically technological subject Computers increase productivity and add life to more than one subject.
When I was young, I loved the computer. I played educational games which taught me basic circuits, optics, waves, basic mathematics and more. The computer made subjects, at the time not very interesting, interesting and fun.
In my fourth grade class we had an old Apple which took 5 inch floppies. We had a game called Stealth Bomber where one would have to find products, least common denominators, and so on in order to proceed without being shot down. It was crucial to me learning to do mental math quickly.
I'll put forth that computers, while not essential to learning, are a great boon to learning. Letting kids surf Wikipedia, news websites, Slashdot, play educational games, and so on is amazingly effective.