Solid-state memory which used magnetic bubble technology, introduced in 1967 after research by Bell Laboratories. These were devices with many useful properties including non-volatility of information, electric rewriting, and high-speed access. Their non-volatility and other characteristics were applied in situations such as using board-mounted elements to serve as price file memory devices in POS terminals. Bubble cassettes were used as high-speed removable memory in the FM-8 and other personal computers, word processors, and NC devices.
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