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The Unicode Consortium together with the ISO have developed a shared repertoire following the initial publication of The Unicode Standard: Unicode and the ISO's Universal Coded Character Set (UCS) use identical character names and code points. However, the Unicode versions do differ from their ISO equivalents in two significant ways.
In article text, we generally prefer to use literal Unicode characters, not these rendered images. Thus, these images are primarily used in articles about characters, where an illustration is appropriate. In particular, any #Unicode tables provide both the literal character and an image of the character.
ASCII art of a fish. ASCII art is a graphic design technique that uses computers for presentation and consists of pictures pieced together from the 95 printable (from a total of 128) characters defined by the ASCII Standard from 1963 and ASCII compliant character sets with proprietary extended characters (beyond the 128 characters of standard 7-bit ASCII).
The Universal Coded Character Set (UCS, Unicode) is a standard set of characters defined by the international standard ISO/IEC 10646, Information technology — Universal Coded Character Set (UCS) (plus amendments to that standard), which is the basis of many character encodings, improving as characters from previously unrepresented writing systems are added.
Unicode has code points for the 52 cards of the standard French deck plus the Knight (Ace, 2–10, Jack, Knight, Queen, and King for each suit), three for jokers (red, black, and white), and a back of a card, in block Playing Cards (U+1F0A0–1F0FF). Also, a specific fool and twenty-one generic trump cards are added.
Most of non-spacing characters are modifiers, also called combining characters in Unicode, such as diacritical marks. Although non-spacing graphic characters are uncommon in traditional code pages, there are many such in Unicode. A combining character has its distinct glyph, but it applies to a character box of another character, a spacing one.
UTF-8 is the only encoding of Unicode (explicitly) listed there, and the rest only provide subsets of Unicode. The ASCII-only figure includes all web pages that only contain ASCII characters, regardless of the declared header.
The Unicode Consortium (legally Unicode, Inc.) is a 501(c)(3) non-profit organization incorporated and based in Mountain View, California, U.S. [4] Its primary purpose is to maintain and publish the Unicode Standard which was developed with the intention of replacing existing character encoding schemes that are limited in size and scope, and are incompatible with multilingual environments.