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{{def|Substrate| | {{def|Substrate|/ˈsʌbstreɪt/|n|[[File:Table with was and stylus Roman times.jpg|450px|thumb|center|a [[substrate]], yesterday]] | ||
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1. The medium, not the message. An underlying substance or layer. The material on or from which an organism lives, grows or obtains its nourishment. <br> | 1. The medium, not the message. An underlying substance or layer. The material on or from which an organism lives, grows or obtains its nourishment. <br> | ||
2. A material which provides the surface on which something is deposited or inscribed. A waxen tablet, a punched card, a magnetic disc. | 2. A material which provides the surface on which something is deposited or inscribed. A waxen tablet, a [[Jacquard loom|punched card]], a magnetic disc. | ||
Once upon a time the distinction between [[information]] and the [[substrate]] on which that information was conveyed was not apparent. The information in a letter, book, or newspaper was indistinguishable from the [[tangible]] paper on which it was printed. | Once upon a time the distinction between [[information]] and the [[substrate]] on which that information was conveyed was not apparent. The information in a letter, book, or newspaper was indistinguishable from the [[tangible]] paper on which it was printed. | ||