Those weren't how computers looked by 1997!!!!

I haven't seen most of this film and, yes, from what I've seen the technology is utterly wrong in just about every aspect. But don't think for a second that the world isn't still run on command line interface. You may not see it and there may be GUI alternatives but some people find the GUI less cumbersome for most systems administration.

That depends on the school's budget, yes?

Certainly those bulky things weren't state-of-the-art in 1997, but they weren't that outdated.

That would depend on the school, the budget, who was running the tech, etc.

Schools can be up to 10 years behind current business technology.

Some schools didn't even get internet until the last 90s, like 95 on.

Our schools still had teacher laptops running Apple OS9 in the 90s.

We still had some black and white computers.

Rooms had inkjet printers, not laser. (I had to buy my own laser to run a math program I wanted to use.)

I can't speak to the PC side but I'm quite sure there were still Windows PCs similar to what you'd find in this movie and they were running something in the classrooms and offices.

You'd think a private school with the 10 richest kids in the world would have the latest technology and it would be replaced or upgraded every 2-3 years but that might speak more to the budget of the movie than the supposed budget of the school.