StackOverflow2013

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2469537
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2010-03-18T11:52:36.893
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2010-03-18T11:52:36.893
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A character set defines the mapping between numbers and characters. Almost all char sets say 65 is A, and agree in general about mappings of numbers up to 127. But they might have different stands when it comes to numbers above 127. There are a lot of character sets <ul> <li>EBCDIC</li> <li>Double Byte Character Set</li> <li>ANSI</li> <li>Different OEM char sets</li> <li>Unicode, an effort to create a single character set that included every reasonable writing system on the planet and some make-believe ones like Klingon, too.</li> </ul> When you say character encoding, you're talking about how a Unicode code point (a character) is stored internally. <ul> <li>In UTF-8 encoding, every code point from 0-127 is stored in a single byte. Only code points 128 and above are stored using 2, 3, in fact, up to 6 bytes.</li> <li>There's something called UTF-7, which is a lot like UTF-8 but guarantees that the high bit will always be zero</li> <li>There are hundreds of traditional encodings which can only store some code points correctly and change all the other code points into question marks. Some popular encodings of English text are Windows-1252 (the Windows 9x standard for Western European languages) and ISO-8859-1, aka Latin-1 (also useful for any Western European language).</li> <li>UTF 7, 8, 16, and 32 all have the nice property of being able to store any code point correctly.</li> </ul> <hr> This post is almost entirely based on Joel Spolsky's post on Unicode: <a href="http://www.joelonsoftware.com/articles/Unicode.html" rel="nofollow noreferrer">The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets</a>. Read it to get a better idea.
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1. POWhat is the difference between charsets and character encoding
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1. PTAnswer
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1. USAmarghosh
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