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magnetic recording

the process of recording sound or other data on magnetic tape, wire, etc.
Origin of magnetic recording
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magnetic recorder, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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magnetic-recording in Science
magnetic recording  
The recording of a signal, such as sound or computer instructions, in the form of a magnetic pattern on a magnetizable surface, such as tape or a disk coated with metal oxides. In the recording process, small electromagnets are used to convert an electrical signal into a magnetic one that magnetizes that surface. The value of the signal at any given point corresponds to the degree and polarity of magnetization of the surface at a corresponding point. During playback, the opposite process occurs, and the magnetic fields along the surface are converted into electrical signals for further processing.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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