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The coding is the act and the result of coding . This verb, on the other hand, can refer to modifying the expression of a message or registering something through the rules of a code . It can also refer to the formation of a body of laws that is constituted as a system.

To understand what coding is, therefore, it must first be clear what a code is. It is a combination of signs (numbers, letters, etc.) that has a certain value within the framework of a system or that enables the reformulation and understanding of a secret message. The codes are also law compilations .

The character encoding , in this framework, it consists of transforming a character of the alphabet or other natural language (such as a syllabary) into a symbol belonging to another representation system. Through coding rules, for example, the morse code allows you to convert intermittent telegraphic signals into letters and numbers.

The character encoding game known by the name of ASCII , which is usually pronounced as "asqui", can encode a maximum of 128 symbols. This limit is due to the fact that it has seven binary digits for the combination of values for character definition, since the latter uses it for the detection of transmission errors.

These 128 possibilities are sufficient for the inclusion of the entire English alphabet with its upper and lower case letters, in addition to the punctuation marks, the numbers and certain control characters (such as the one that tells the printer to start working with the page following). Having said that, ASCII cannot meet the needs of our language , since it does not include the characters with tilde or the initial question and exclamation marks, among other symbols that we need in various contexts.

These limitations gave rise to the definition of other character coding systems, among which is the Extended ASCII , also of 8 bits . Despite this, they also do not have enough space for the inclusion of all the alphabets in the world, but also require division into several, which are used according to the needs of each user.

To solve this problem of the capacity of character coding systems, in 1991 the use of the so-called standard was agreed internationally Unicode , a table of considerable dimensions, which today has more than fifty thousand symbols , each with its own code, to cover a large number of ways of writing , including the ideograms used in Chinese, Korean and Japanese, in addition to the characters of all the languages ​​of the European continent.

It is known as transmission standard to the definition of the way in which the encoded characters are transmitted through a communication channel, such as the Internet. Currently, messages are sent in packages of an entire number of octets; Error detection is not done with the eighth digit, but for this task they allocate specific octets.

An encoding involves the conversion of data systems, causing the data The results are equivalent to the originals. In the case of digital coding , consists of translating electrical voltage values ​​into the binary system: thus the analog signal is written as zeros and ones.

In the field of right , the encodings are legal compilations that are used to administer justice. A civil Code and a penal Code They are the result of a coding process. These codes order and systematize the norms and typify crimes, eliminating legal loopholes and redundancies.

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