In computing we find different types of codes.
The term code has different uses and meanings. It may be a combination of symbols that, within the framework of an already established system, has a certain value.
For example: "The programmer will have to modify the software code for it to work correctly" , "What is the access code to enter the warehouse?" , "I have to change the code to my safe."
The code in computing
In the case of computing , source code is known as the text developed in a programming language and that must be compiled or interpreted in order to be executed on a computer , also called a computer.
Always in the computer field, the ASCII code ( an acronym commonly pronounced "asqui" and which means American Standard Code for Information Interchange, or North American Standard Code for Information Interchange) is a representation of alphanumeric characters that facilitates communication between different digital devices. Letters, numbers, symbols and accents have their corresponding ASCII number, so programs developed by different people and equipment manufactured by one company or another can understand the text in the same way.
The ASCII code represents each character with a number from 0 to 127, in decimal scale . For the processor, this is a 7-digit binary string, where 127 is expressed as 1111111. This is especially useful in building websites; When there are forms to be filled out by users, and especially if the page has versions in several languages, it is very important to carry out meticulous processing of the entered text to ensure that it is stored (in the database) in such a way that at the time After reviewing this information, there are no errors when printing the special characters .
The concept as a secret combination and in communication
A code, on the other hand, is a combination of characters that is used to create and understand secret messages: "Historians are trying to decipher the code used by the Nazis to exchange messages after the fall of the Third Reich," "The army managed to intercept a coded message from the enemy side .
Communication Theory knows as a code the set of signs that must be shared by the sender and the receiver of a message for it to be understood. If a man speaks in French to another person who does not know that language, communication will not be possible since the code used to transmit the message is not known to both.
A legal code compiles laws.
Code in law and genetics
In the field of law , a code is a grouping of systematic legal principles that regulate, in a unitary manner, a certain subject. By extension, code is the compilation of different laws that is carried out in a systematic way ( Civil Code , Penal Code ).
The genetic code , meanwhile, is the group of rules that allows the data that is encoded in the genetic material to be translated into proteins in the cells .
The creation of Samuel Morse
Morse code is one of the most famous communication systems and yet very few people know it in detail. It is a representation of the alphabet through electrical impulses of different lengths, although it can also be expressed graphically and sonically . Characters can be made up of dots, dashes, and spaces.
Its creation dates back to 1830 and took place in the United States, by the physicist and inventor Samuel Morse. His intention was to find an effective means of telegraphic communication. Having gotten the government to finance his project, for which he had to fight and be very patient, he carried out his first transmission test between Baltimore and Washington. Its success brought about the creation of a network that connected the entire country.