As a bit of follow-up to yesterday’s post, IBM started shipping magnetic disk about four years after their tape. Jeffrey McGuire sent me the link to this video, 60 Years Ago: IBM Invents the Hard Drive.

(One impression from this video: people talk about corporations controlling things now, but it feels like it was worse in the 1950’s. Of course, IBM’s corporate culture under Watson Sr. was always a bit creepy.)