drum memory(redirected from Magnetic drum memory)
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Related to Magnetic drum memory: Magnetic core memory
A RAM device consisting of a rotating metal cylinder with a magnetizable coating on its outer surface and a moving read/write head.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.