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| ksor:
--- Quote from: awemawson on November 10, 2014, 11:28:28 AM ---The standard configuration was a 5 mb 'fixed platter' and a 5 mb removable one, both on the same spindle. A not entirely uncommon fault was for the heads not to retract properly, and then the customer try to pull the removable disk out with attendant destruction :) Oh happy days ! --- End quote --- Maybe there was 2 sizes - the one I'm talking about was in fact 2 X 10 Mb - I think it had the number 7606 (not sure), but I'm sure about the 10 Mb - I have the disk now, plan to use them for a lamp :loco: :loco: :palm: |
| awemawson:
The ones I worked on were CDC not HP so entirely probable that they were different. These were a 'step up' from the Burroughs 2 Mbyte fixed head ones - 100 read / write heads on each side of a 20 inch brass platter 1/4" thick and nickel plated. The heads 'flew' aerodynamically on the flow of air from the centre outwards as they spun, and were pressed on with pneumatic cylinders. I once had to accompany a faulty one from a hush hush military establishment with a military police escort to the factory in Manchester so that they could witness it's total destruction. It apparently had the disposition of the NATO fleet on it :bugeye: |
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