WEBVTT

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Removable storage media.

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Continuing on our topic of storage media, I'd first like to start by discussing removable storage media

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as they play a role just as important as that of fixed storage media in today's world.

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Magnetic Tape drives.

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Introduced by IBM in the 1950s, magnetic tape was an easy and very fast way to store data at a speed

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equal to its processing time.

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The IBM 726 magnetic tape reader and recorder was one of the first devices to offer this storage with

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a capacity or tape density of 100 bits per linear inch of tape.

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Inch of tape should give an indicator of the size of the tape, which was wound on a large wheel similar

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to an old film roll movie tape.

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With magnetic tape, media data is written across the width of the magnetic coated plastic strip in

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frames separated by gaps consisting of blocks.

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Magnetic tape is still very much used today, and like many other storage media types, has significantly

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decreased in size while increasing in capacity and speed.

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To give an idea of how far magnetic tape storage has come in 2017, IBM developed newer tape storage

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media with a tape density of 200 guests per inch on a single cartridge, which can hold up to 333GB

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of data.

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These cartridges for older folks like myself are the size of a cassette tape, or for the younger ones,

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not much smaller than the average smartphone, which fits in your hand.

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As of 2019, Fujifilm released the Fujifilm linear tape open Ultrium eight LTO eight magnetic tape cartridge

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with a native capacity of 12 TB terabytes and a data rate of 360 maps.

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30 TB of compressed data can fit on this single 12 TB cartridge.