Magnetic Bubble Memories
Type of computer-memory storage system consists of a thin chip of synthetic garnet with tiny, magnetic domains, called bubbles, in its upper layer these bubbles appear and disappear under the influence of an electromagnetic field, and their presence and absence represent information used more often for auxiliary storage than for main memory
Web Links
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Yet another computer museum - Bubble Memory
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Magnetic-bubble memory -- Britannica Student Encyclopedia
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Magnetic bubble memory device - Patent 4471468
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