Nel 1969, IBM ha introdotto una carta magnetica per la macchina da scrivere Selectric. E’ una macchina da scrivere elettronica con una unità di memorizzazione esterna con schede magnetiche della stessa dimensione delle vecchie schede da 80 colonne. Erano rivestite da uno strato magnetico e potevano registrare/riprodurre 12-15 caratteri al secondo.
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