A Simple Plan: Technology

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What One Should Understand About Hard Drive Degaussing This however is not the truth The reality is that the data is still in the hard drive. In fact, all one does when they delete such information from their computer is to erase the path that one can use to access the information. Nonetheless, one can still be able to erase info completely from their hard drive. One can erase data from their computer hard drive in three different ways. You can erase the hard drive using a hard drive eraser, you can physically destroy the drive, or you can do what is known as degaussing. Degaussing simply put is complete erasing of information on a drive. Degaussing is very popular considering the amount of sensitive information the needs to be permanently erased by various organizations. This method is unique compared to other methods. Unlike deleting and formatting, degaussing completely clears information by the use of a special technique. Below are some fact s you should know about hard drive degaussing. Uses Magnetic Fields
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Degaussing is pretty much the elimination or decrease of a magnetic field. This means it requires magnetic fields in order to erase information from magnetic storage devices such as discs and tapes. These devices have a fine coating of iron oxide and sometimes chromium oxide on the tape. During this degaussing process an intense magnetic field is generated. It is the intensity of this magnetic field that aids in permanent removal of the information stored on the iron oxide coating or the chromium oxide. The data stored on a disc is therefore destroyed completely because the magnetic field of the tape is changed. previously recorded data is either removed or randomized during degaussing. This is why the data can never again be recovered.
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Safety of the Process According the World Health Organization, there is no evidence that suggests any kind of harm can come from this type data destruction. This is particularly with regard to one’s exposure to the magnetic fields during the process. Speed of the Degaussing Process The process of degaussing might sound complicated and slow. However, contrary to what the name sounds like the process of erasing data is quick and simple. Uses a Different Concept from Hard Drive Erasers As previously mentioned, degaussing requires the use of magnetic fields to help neutralize a hard drive’s magnetic charge. Hard drive erasers however, actually work on the principle of overwritten data, once the data is overwritten enough times it becomes impossible to forensically recover it or even decipher its meaning. Essentially, no erasing actually goes on in this process.