<Table> <Tr> <Td> </Td> <Td> This article's factual accuracy is disputed . Relevant discussion may be found on the talk page . Please help to ensure that disputed statements are reliably sourced . (June 2012) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article's factual accuracy is disputed . Relevant discussion may be found on the talk page . Please help to ensure that disputed statements are reliably sourced . (June 2012) (Learn how and when to remove this template message) </Td> </Tr> <P> A convention of sorting names with the Scottish and Irish patronymic prefixes Mac and Mc together persists in library science and archival practice . An example is from the Archives at the Yale University Beinecke Rare Book and Manuscript Library . It is also applied in areas such as voter registration, where Mac and Mc names may be sorted together in a listing . Technically this is a convention in collation . </P> <P> On the other hand, ASCII is a computer standard and its corresponding sorting is gradually replacing this exception to ordinary alphabetisation . Rules once used for filing have been dropped for some newer computer systems, and the interfiling of Mac and Mc names is an example, according to a 2006 book . </P>

What's the difference between mac and mc
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