Back is the part of the seat where the back rests. The backrest must be designed in such a way that the person can sit comfortably and adopt a position that is beneficial for your bones and joints.
The ideal posture involves little tension and an expense of Energy minimum. The back of the seat, in this sense, has an important role in helping the subject to maintain a proper posture and avoid pain, fatigue and potential injuries. For instance: “I don’t like the back of this chair: it makes my back ache”, “The company bought chairs with ergonomic backrest for the well-being of the employees”, “Please find a seat with a back for Grandpa.”.
In another, more symbolic sense, the endorsement is a warranty, protection or support: “Yamila was able to study in Europe thanks to the support of her family”, “Since childhood, Lionel Messi had the support of his parents to dedicate himself to football”, “I would love to buy this house, but I need financial backing to pay the mortgage”, “The president has supported the questioned governor”.
In the field of computing, the notion of endorsement is used to name the backup or backup. Those documents considered important by the user are those that deserve to have a backup (that is, a copy for security reasons). In this way, if for some reason the original file is lost or damaged, the user can resort to backup.
The do you copy Security files are usually stored on pendrives, CDs, DVDs, in the cloud or on a hard disk, although it is important that they are on a different drive than the original file to prevent the information from being lost.
It is called center supporting a data processing center (generally known as a data center, the site where an organization places the resources it needs to process its information) that is created to be able to control another data center if a problem occurs.
The big ones companiesSuch as a bank, they cannot contemplate losing their customer information or going out of business if a problem occurs at their processing center. Possible emergency situations include fires, earthquakes, and acts of terrorism; Although these are not normal situations, they are probable, and a company of this size must be prepared to face them.
The design of a backup center shares the foundations of a normal data center, but there are certain fundamental points to take into account:
* The ubication: it is essential to choose a different geographical location from the main data center, to avoid the same emergency situation affecting both of them. In general, the average distance is 30 kilometers and is closely linked to the limitations of the technology communications used by the company;
* compatibility: all equipment and systems The computer systems used to build the backup center must be 100% compatible with those of the data center to which they replicate, although not necessarily the same. It is important to clarify that it is not necessary to be able to perform all the tasks of the original CPD in the event of an incident, but criticism is enough. For this reason, the possibility of using components of smaller caliber is contemplated and a distinction is made between a White room (when the main CPD is copied exactly) and back-up room (if similar equipment is used);
* the software: While hardware may differ in power, it is imperative that hardware programs they are the same, that they have been updated to the same versions and that they have been equally patched;
* the data– All the information from the main CPD should be in your backup center, which is not always possible and represents a great risk for customers.