<unk>  is the representation of language in a textual medium through the use of a set of signs or symbols (known as a<unk>  system). It is distinguished from illustration, such as cave drawing and painting, and the recording of language via a non-textual medium such as magnetic tape audio.<unk>  began as a consequence of the burgeoning needs of accounting. Around the 4th millennium BC, the complexity of trade and administration outgrew the power of memory, and<unk>  became a more dependable method of recording and presenting transactions in a permanent form (Robinson, 2003, p. 36).
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