IBM RAMAC Device: 5 MB
Check out this picture.
http://www.petapixel.com/2011/12/27/what-5mb-of-storage-looked-like-in-1956/
Random Reminiscing Follows
When I was in college (1974-1978) 64K of RAM was the size of a refrigerator.
By 1982, 64K of RAM was an Apple ][+ fully tricked out with the 16K expansion card.
I vaguely remember working …