Grail on Rand Tablet, Sketchpad, NLS and early Smalltalk (VPRI 1229)

From a channel Lumen includes in full: Yoshiki Ohshima, a researcher who worked alongside Alan Kay at Viewpoints Research Institute, digitises and posts the VPRI archive: Alan Kay's lectures and historic computing demos (JOSS, Sketchpad-era systems), a primary-source record of computing history.

A 45-minute video from Yoshiki Ohshima (大島芳樹)'s catalogue; the title names its topic.

Video by Yoshiki Ohshima (大島芳樹), played through YouTube's embedded player.