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| Magnetic Tape: |
Magnetic Tape: Magnetic tape is the most popular storage medium (for large data), which are sequentially accessed it processed, the magnetic tape medium is a plastic ribbon. which is usually ¼ inch wide. 50 to 2400 feet long. it is coated with a magnetically recording-material, such as iron oxide are chromium (dioxide. Data), are recorded on this tape in the form, of tiny invisible magnetized and (non magnetized) spots representing is and 0s on the coated surface of the tape, The tape-ribbon is itself stored in the reels or a small cartridge or cassette. Like audio or videotape. The magnetic tape used in computer systems can also be erased and reused indefinitely Old, data on at tape, are (automatically, erased) as new data are recorded it the same area. However, the information store can be read many times. without affecting the store data.
