A device invented by Dr. Bobeck in 1966, for mass storage of data is A. Punched paper tape B. Magnetic bubble storage C. Magnetic tape D. Magnetic disk E. None of the above
Magnetic bubble storage : Bubble memory is a type of non-volatile computer memory that uses a thin film of a magnetic material to hold small magnetized areas, known as bubbles or domains, each storing one bit of data. The material is arranged to form a series of parallel tracks that the bubbles can move along under the action of an external magnetic field.
