"Bright graphics, a touchscreen, a speech synthesizer, messaging apps, games, and educational software—no, it's not your kid's iPad. This is the mid-1970s, and you're using PLATO."
vintagecomputers
"Today, one of the 1960s machines still plays music, headlining a fascinating annual tradition – every December, the PDP-1 restoration crew at the Computer History Museum in California invites visitors to sing carols with the computer older than most of them."
https://unsung.aresluna.org/this-was-a-user-friendly-computer/