#otd in 1956 IBM unveiled the first disk drive, the 305 RAMAC. It was 16 sq. ft., weighed over a ton & had to be transported by plane — but it allowed a computer w/only a few KBs of memory to access the equivalent of 64K punch-cards. https://
bit.ly/3z9A3c0 Image v/Ed Thelen
IBM’s 1956 RAMAC: First Disk Drive Revolution
By
–
