In case you did not believe it, the rumour is true: Once something is entered into a computer, it never really goes away. Although this may seem scary to you at first, it is actually the main characteristic of computers that allows your old data to be recovered if it is lost.
If your computer shuts down by surprise or you drop it on a pile of bricks, the data is still intact even though you may not be able to see it. As long as the connections in the motherboard are still soldered together, the data is able to be retrieved.
How Data Works Inside a Computer
No matter how complex computers seem from the consumer side, everything that happens inside the box happens as binary code – insanely long strings of 0s and 1s, offs and ons. New data does not take up any physical space in the computer. The reason that things appear the same on your computer screen is because the 0s and 1s do not move in the binary code. Nothing can make them move outside of physical separation. Think of it like this: Even if you close your eyes, you can still move your finger. You can go to sleep, and when you wake up, your finger will still move in the same way. The data for how to move your finger remains in your brain even if you “turn yourself off.” The same can be said for a computer, experts in the field such as our contributor at CyberCall’s data recovery in Bristol will always be able to diagnose the problem and look to see what data can be recovered.
When you erase data on your screen by deleting a document, you are not removing that information from the computer’s binary code. What you are doing is giving the computer permission to write over it with another document if the computer does not have enough free space to imprint the code somewhere else. However, a computer can also store the memory of the code before it is overwritten. This is the reason that a qualified professional can retrieve this formatting – it is never really gone.
When you take your computer into a repair expert to retrieve data, what that person is really doing is accessing an old format – making the computer remember how it was set up before the incident that caused actions that you did not like. Never believe any so-called professional who says that your data cannot be retrieved, because it certainly can with the right resources. For more tips on topics such as data recovery and computer technology see CyberCalls’s computer repair blog.