History

This stack of 62,500 punched cards was 5 MB worth and held the control program for the giant SAGE military computer network [source: https://t.co/prOtOyGYCa] pic.twitter.com/RJab33i8jq

— Massimo (@Rainmaker1973) July 12, 2021

When, as a management consultant, I automated the offices of one of the Big Eight accounting firms in 1986, our first external drive was a massive 5 meg hard drive which crashed a dozen times a day.  And it was such a marvel.