The Most Successful Idea in Computer Science

From a channel Lumen includes in full: Core Dumped explains operating systems and computer architecture — processes, scheduling, memory, race conditions, kernel mode — with careful original animations built up from first principles; narration is synthesised but the scripts and visuals are the creator's own.

A 16-minute video from Core Dumped's catalogue; the title names its topic.

Video by Core Dumped, played through YouTube's embedded player.