What is character coding?
characters, in computer programming, is a method or algorithm used to find usually numerical representation of the character, glyf or symbol. Using characters on computers is essential because the computer's memory and computer -readable media are stored as a sequence of bits or numbers. This requires the use of coding to translate non -German characters used to display or a person readable output into a mold that a computer can handle. In a more specific application, hypertext Markup Language (HTML), which is read by web browsers, can define what type of character coding they use so that the browser can know which specific character is when displaying information in the document. There are several used coding schemes, although many of these proprietary and inheritance sets are slowly replaced by Unicode® coding standard.
In the first days of computers, when there was a limited memory space, the basic features of the English alphabet-including punctuationand numbers-unloaded in 7-bit sequences allowing 128 different characters. In this original scheme, each 7 -bit byte represented one character of the English alphabet, numbered in the sequence. This character coding was efficient and was eventually standardized and used in most computers produced. Although the coding system has evolved into Unicode® encoding standard, the concept remained the same. Specifically, each character in the language is directly related to one number within a large standard character set and this number is what the computer uses to store, process and index the character.
Other types of character coding have been developed for various reasons. Some who have been focused specifically on the English alphabet and were to be used for text only mapped their characterners on 7 -bit sequences and then unfold them into 8 -bit bytes or octets. This resulted in a 1 -bit saving on octet and efficiently used character coding as a type of compression. Other coding schemes have tried to provide basic character information and then anotherCharacters that represent special accents that could be used in writing in a different language, although they were largely abandoned for simpler one-to-one encoding methods.
In HTML documents, characters are roughly the same as a wider concept, except for the defined coding includes a whole set of characters. This can be important not only for foreign languages, but also for documents that use specific symbols for science or mathematics that are not present in all character sets. It can also be useful for the use of punctuation and other glyphs that could not be present or mapped differently across the coding schemes. Documents that do not define non -standard signaling could be displayed incorrectly instead of readable information or to be filled with nonsensical characters and surrogate symbols.