A standard defined by the Unicode Consortium that uses a 16-bit code page that maps digits to characters in languages around the world. Because 16 bits covers 32,768 codes, Unicode is large enough to include all the world's languages, with the exception of ideographic languages that have a different character for every concept, such as Chinese.
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Most computers are digital and recognize only two discrete states: off and on. To represent these states, computers use binary system, which is a number system that has just two unique digits 0 (for off) 1 (for on) called bits. A bits is the smallest unit of data a computer can process. Grouped together as a unit , 8 bits form a byte, which provides enough different combinations of 0s and 1s represent 256 individual characters. The combinations are defined by patterns , called coding schemes, such as ASCII, EBCDIC, and Unicode.
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Friday, April 11, 2008
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