The 1970s introduced the world to PLATO, a groundbreaking educational technology that revolutionized the way students learned. From its humble beginnings using old radar equipment to teaching users with advanced software like TUTOR, PLATO paved the way for interactive learning. PLATO IV, the most advanced version, featured a state-of-the-art gas plasma display, touch panel for direct interaction, and even sound capabilities. Its innovative remote networking setup allowed for up to 1,008 simultaneous sessions per cable channel, a feat unheard of at the time. Despite its hefty price tag, PLATO IV marked a significant technological advance that continues to influence modern education systems.
https://arstechnica.com/gadgets/2023/03/plato-how-an-educational-computer-system-from-the-60s-shaped-the-future/