What's on computers?
In computers, the Eraser term is used to describe the software program or a hardware device designed to completely erase the hard disk content. The use of rubber is the only real way to ensure that the data is removed from the hard disk, as the unit formatting simply leaves the possibility to restore a large amount of information present. There are different levels of security for rubber, with the most basic one to make more than a simple format, but still leaves a certain possibility of reconstruction of data bits and the most advanced destruction of all shredded data on the unit.
Understand why rubber is important, it may be useful to understand the storage information, and what happens when a computer that happens to start the file. The files are stored in bits via the unit; When the user opens the file, it checks where the file is saved and reads it. Over time, these files shatter and spread down the hard disk but the hard drive can still find and reconstructOR completely. The empty hard disk space is marked as empty so that the computer knows that there can be inserted new files or have existing files extend to these data blocks.
When the file is deleted, it is first inserted into a temporary holding basket on a computer such as a basket or recycling basket. At this point, each user can easily open the basket and find the file and drag it back to reopen it. Many people, as soon as they have emptied the garbage, think that these files are permanently erased. In fact, the only thing happened that the computer changed these data blocks in that they had information about them to say that they were empty and can be rewritten.
The trick is that these blocks will not necessarily be rewritten unless many other files are added to the computer. This means that the advanced user can simply switch how the computer sees it, and the information will appear. Actually,Although many new files are added to the computer, it is likely that pieces of original files will remain. A dedicated individual could reconstruct a large range of data, such as pieces of personal e -mails, passwords or billing information. For this reason, it is essential to use rubber in the disposal of a hard disk that can have some sensitive information about it.
Eraser basically takes all those pieces of data and says they are empty. Then he goes through and accidentally writes information about every byte of the hard disk, ensure that he will overwrite anything that might be there. The standard rubber format consists of browsing and writing 1 for each byte, then passes and writes 0 on every byte. At the end of this, it is likely that all data will be completely erased.
hardware rubber does the same as software rubber, but without the need for a computer. In this way, you can make a hard disk, connect it to the rubber and automatically clean all the data from it. It can be ideal for organizations with many hard drives that requireerase. For people who want to be absolutely sure that their data is gone, there is another option: shredding a hard drive. It is a process of actually using data boards from hard disk and their shredding, and sometimes burns it, which ensures that absolutely no data can survive.