I am a sixth form (year 13) student at a state school in the east of England. Reading about the state of IT in US public schools like this absolutely astounds me!
In my school there are approximately 1200 students and 200 staff including support staff.
This is the equipment they have, roughly:
600 desktop PCs (all less than 2 years old, dual core, 2gb ram, dell optiplex machines)
120 dell laptops for staff
200 HP laptops for use around the school (mainly in science labs etc.)
75 iMacs in media studies and music classrooms
15 Macbooks for media staff
Active whiteboards in 75% of classrooms (100% of science labs)
It all runs off of Windows servers using Active Directory, they have a proper server room with racks of fileservers, web filtering server, AD server etc., and the system runs flawlessley.
They also have a WiFi network for student laptop use, which runs through the schools proxy server for filtering.
The contrast between the two education systems astounds me!