The adjective external comes from the Latin word externus . The concept refers to that or that which acts or presents itself externally , as opposed to internally. For example: "It is important to safeguard the information in some external storage medium in case something happens to the computer" , "I am not part of the permanent staff of the magazine, I am an external collaborator" , "The main business of our company is in the external market .
The term is used to construct various expressions. The external ear , to cite one case, is the sector of the ear of vertebrate animals that includes the eardrum, the ear canal and the ear pinna. The function of the external ear is to capture sounds and conduct them to the middle and inner area.
An external angle , also called an exterior angle, is one formed by one of the sides of a polygon and the continuation of the adjacent side. Polygons, at each vertex, have two external angles that have identical amplitude. Each of these external angles is supplementary to the interior angle with which it shares the vertex.
External debt , on the other hand, is made up of the sum of the debts that a nation has with foreign entities. It is made up of the debt contracted by the State ( public debt ) and that taken by individuals and companies ( private debt ).
In the field of computing, there is the concept of an external hard drive , which is also known simply as an external drive or external drive , among other names, and is a storage medium that is usually connected to the computer or device. main to save files as a backup, although the use that each user gives it may be different.
The most common reason for purchasing an external drive is the lack of space on the internal drive, but it can also be done to preserve certain information in an environment other than the operating system, where it is not so exposed to viruses and computer failures, among other risks. . There are various types of digital storage media, each with its pros and cons, but they all share one characteristic: they do not last forever.
Among the types of external drives that are available on the market, those that have the same technology as traditional hard drives and those that use flash memory stand out. The main difference between the two is that the first has moving parts, since it contains a magnetic disk that rotates at high speed while a mechanical needle runs through it to perform reading and writing tasks, and the second is based on electricity to manage cells. absolutely static memory .
The term external is also found in the concept of exoskeleton , which certain animals, protists and fungi have to support and protect their body. Another name it receives is dermoskeleton , and it is characterized by covering the external surface of the body.
The Ford company provides its employees with a type of external skeleton that it calls EksoVest to assist them in the heaviest and most repetitive tasks. It is a type of mechanical vest that prevents wear and tear from certain movements, especially those that require keeping the arms pointing upward to adjust parts of cars that are suspended above them.
Finally, an external worker is called an individual who provides services to a company , but who is not part of its stable workforce. This means that the external worker was not hired by the company in question, but rather carries out certain activities for it, billing them.