A writing system is an organized regular method (typically standardized) of information storage and transfer for the communication of messages (expressing thoughts or ideas) in a language by visually (or possibly tactilely) encoding and decoding (known as writing and reading) with a set of signs or symbols, both known generally as characters (with the set collective referred to as a 'script'). These characters, often including letters and numbers, are usually recorded onto a durable medium such as paper or electronic storage/display, although non-durable methods may also be used, such as writing in sand or skywriting.
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