(1) See magnetic stripe.
(2) Wide strips of magnetic tape used in early data storage devices and word processors. See CRAM, RACE and Data Cell.
A Data Cell Card
The magnetic tape card on the right came from an IBM Data Cell cartridge in the 1960s. Storing 200KB, it resided with 199 other cards in a cartridge. (Image courtesy of Frank da Cruz, www.columbia.edu/acis/history)