On 12/04/2014 09:55 AM, dave wrote: > IIRC one of the US ICBM's had something like a 250 Kb hard disk, > head/track; all in a rather sturdy > case about 5" in dia. But that was a few years ago to I can't attest to > the accuracy of my memory. > Yes, that would be the Minuteman computer, the Autonetics D17. Of course, these were SERIOUSLY gold-plated ultra-ultra-high reliability systems meant to properly deliver a nuclear warhead, despite the enemy's best efforts to knock it down. And, they were expected to sit idling in a silo for years, waiting for the command that everybody hoped never would be sent. This computer did not have any other memory, other than a few registers.
See http://en.wikipedia.org/wiki/D-17B for a bit more info and a picture. Jon ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
