Hard disk by changes data save method...
Computer in information save it method IBM ramac of coming Big changes
happening comes in by it data magnetic disc on save possible has
previously computer information save it for punch Card and magnetic tape
of use it get it has IBM 1956 in ramac 305 launch it has with it models
350 hard disk connect have which world's first business hard-disk said
that June 1956 in this first machine San Francisco here jailer bak paper
comany to send in it 24 Inch 50 disk have which per minute 1200 time
moves and in it totally 375 mega byte data save get it it's use business
registration keep in it for doing it it
1956 in IBM ramc 305 launch it which hard-disk with comes in
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