| 11. | Newer versions of the Reservisor included magnetic drum systems for storing flight information further into the future.
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| 12. | Secondary storage was provided by magnetic drums, each of 4, 096 words-about 20k.
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| 13. | This was complemented by an additional 8192 words of backing store on magnetic drum ( 3000 rpm ).
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| 14. | Transfers to and from magnetic drum was interleaved to allow some processing between transfers to / from consecutive blocks.
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| 15. | The second was the permanent memory containing the translators and so on, which used the magnetic drum store.
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| 16. | Delay Line 11 ( DL11 ) served as the buffer between the magnetic drum and the high-speed store.
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| 17. | ILLIAC II had 8192 words of core memory, backed up by 65, 536 words of storage on magnetic drums.
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| 18. | As the names imply, both of the NRL systems relied on the comparison of returned signals stored on magnetic drums.
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| 19. | This computer consisted of a single magnetic drum, each memory location holding the number of seats left on a particular flight.
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| 20. | Lindquist's first optical mark recognition scanner used a mimeograph paper-transport mechanism directly coupled to a magnetic drum memory.
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