The relationship between schools and networking technology has undergone a circular evolution. "Computer network" entered the K-12 educational lexicon in the 1960s via timesharing computers oriented to instructional delivery. Using systems like PLATO, schools on the "cutting edge" put high-resolution display terminals into classrooms and connected them by modem-phone line links to central mainframes running educational software. Then came the personal computer revolution.

The next step? "Internet, internet, internet," says Robert Kenyon, director of technology and network administrator for Saint Andrew's School in Boca Raton, Fla. "The internet has become mainstream ‹ it's where the

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