To store more data and programs when the power is off, most computers use magnetic discs.
Polarity is a board game that requires strategic thinking and dexterity to control hovering magnetic discs.
The playing pieces are magnetic discs, with one side white and the other black, north and south respectively.
Truitt slipped under the rear of the Jaguar and attached a small magnetic disc to the fuel tank.
She allowed the car to settle into a concave lock and come finally to rest against a magnetic disc.
This level of data integrity is not usually matched by other magnetic disc or tape technologies using normal write once emulation.
The Mavica records 50 pictures on a magnetic disc.
Instead of punched tape, magnetic discs store the information for two independent computers, which control two photosetters.
The magnetic disc stopped and swung in the air with Conrad stuck beneath it like a broken doll.
Other devices used spinning magnetic discs, not entirely unlike those used in modern hard disk drives.