data stored in moving rust, was Re: Remembering RAMAC

[Eric Smith]

Tom wrote:
> certainly, IBM did not invent the disk drive. They may have
> commercialized it first, but I doubt that even.

I'd be very interested to hear of any working magnetic disk drive,
commerical or otherwise, predating the IBM RAMAC.

> Hand-wave -- it was obvious.

In hindsight it looks obvious.  I'm not convinced that it was
obvious 50 years ago.

Eric