bubble-memory

bubble memory

noun Computers.
a storage medium employing tiny, movable, bubble-shaped magnetized areas within a magnetic material to represent data bits.

Origin:
1970–75

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World English Dictionary
bubble memory
 
n
computing a method of storing high volumes of data by the use of minute pockets of magnetism (bubbles) in a semiconducting material: the bubbles may be caused to migrate past a read head or to a buffer area for storage

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