First a single user system in 1960, it became multi-user in the mid-sixties. DSchneider believes that PLATO was the first e-learning platform. Principles behind courseware were not too different from modern-day content-based main-stream e-learning.
The only difference is that early PLATO systems did not incorporate the typical CMC components a modern Learning management system has. But already by the mid-70's, PLATO featured on-line talk and messaging. Plato also included some of the first online games and multi-user virtual environments.
PLATO is still alive in various incarnations ! See the Wikipedia PLATO]article for details.
Categories: [E-learning tools] [Learning management systems]