On Fri, 27 May 2005, Eric Smith wrote:
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.
OK, I'll look!
Hand-wave --
it was obvious.
In hindsight it looks obvious. I'm not convinced that it was
obvious 50 years ago.
Rotating magnetic drum memories were certainly in use by 1948.
Surely, other forms of rotation are obvious enough. And it's not
like people weren't looking for storage then!
I realize there's a difference between an on-paper idea and a
working model. I'll see what I can find.