View Single Post
  #4  
Old 25-09-2012, 12:43 PM
gary
Registered User

gary is offline
 
Join Date: Apr 2005
Location: Mt. Kuring-Gai
Posts: 5,999
Hi Warren,

Here is the patent filed by IBM on Christmas Eve 1954 and issued in May 1964.
http://www.google.com/patents?id=gQR...page&q&f=false

The IBM 305 RAMAC was the model number for the entire computer system and
the disk storage unit was the IBM 350.

I have some 14" platters somewhere here from what I recollect were from a IBM 2316
removable disk pack dating from the mid 60's which were used with a System/360
machine.

If you happened to be in the machine room at the time one of these disk storage
units experienced a head crash, it was a sound you do not forget.
Reply With Quote