Hypertext Markup Markup Language (HTML), on the other hand, uses a character set derived from the International Standards Organisation - ISO-Latin-1, or ISO8859-1. Another notion is to use more than the traditional one byte to encode the characters - two bytes, for instance, can cover upwards of 65,000 ideographs. One solution is to divide the ideographs themselves into a number of common signs, or ‘strokes’, and to chain these strokes together to form the symbol - much as we chain letters to form words. Modern Chinese, for example, includes more than 50,000 picture-signs. Each has 28 phonetic characters (not counting various vowels and diacritical signs) but, depending on its place in the word, each character can have four different shapes.Īnd then there are those languages that use ideographs instead of the more familiar alphanumeric symbols. Languages such as Arabic and Urdu cause a bit of a problem, though. Later versions upped the ante to 256 to include some slightly esoteric characters and produce a more international fluency. The original form of ASCII, as defined by the American Standards Association in the early 1960s, represented 128 characters - more than enough to cover the English alphabet and numerals, and most other modern languages as well. There are always some slight differences between platforms (trying to read Unix ASCII files on your standard MS-DOS PC can cause some interesting hiccups), but these are generally restricted to control characters.
Each of these decimal numbers are then transposed into binary for processing, and the end result is a standard code for information exchange.
ASCII assigns a decimal number to each letter of the alphabet (both upper- and lower-case), as well as to the numbers from 0 - 9, and most punctuation signs.
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