Why is a database always represented with a cylinder?

Posted by Creepy Gnome on Stack Overflow See other posts from Stack Overflow or by Creepy Gnome
Published on 2010-05-12T20:47:47Z Indexed on 2010/05/12 20:54 UTC
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database

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diagram

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diagramming

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database-design

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database-diagramming

This question came up today and I couldn't find any historical answer as to why a database is always represented as a cylinder. I am hoping someone in the stack world would know why and have a link or something backing it up.

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