A. Direct - डायरेक्ट
B. Random - रैंडम
C. Sequential - सेक़ुएन्टिअल
D. Indexed - इंडेक्स्ड
In magnetic tape only one side of the ribbon is used for storing data. It is sequential memory which contains thin plastic ribbon to store data and coated by magnetic oxide. Data read/write speed is slower because of sequential access. It is highly reliable which requires magnetic tape drive writing and reading data.