That classroom pic is actually pretty cool. The back where the monitors are attached to flips down giving the students to use as a normal desk. They still use Optiplex GX270 and 790s? I think the latest model is GX990. Limited budget I guess.
Well the 270's should have been replaced a while ago but the Desktop Tech that I replaced didn't have "time" to swap them out so I had to do it... 790's are new for us. We received some 990's in last week.
It's government so they are cheap.