So i was enjoying some down time for myself the other night taking a nice warm bath and letting my mind wander when i suddenly recalled a time when i worked at a research station and some idiot managed to somehow delete over 3000 excel spreadsheets worth of recently collected data. I was charged with recovering the data and scanning through everything to make sure it was ok and nothing deleted…must have spent nearly 2 weeks scanning through endless pages…and it just barely dawned on me to wonder…exactly…how the hell do data recovery tools collect “lost data”???
I get like a general idea of like how as long as like that “save location” isnt written over with new data, then technically that data is still…there???? I…thats as much as i understand.
Thanks much appreciated!
And for those wondering, it wasnt me, it was my first week on the job as the only SRA for that station and the person charged with training me for the day…i literally watched him highlight all the data, right click, and click delete on the data and then ask “where’d it all go?!?”
In: Technology
A computer file is like library. the building is the hard drive. It can fill up. the books are the files and placed neatly on shelves. Some books have multiple volumes like an encyclopedia. Somewhere there is an index of all the books in the library. Lets assume that is a card catalouge index. The hard drive keeps the index, and relies on it to know what shelves have b
Active books. When you delete a file, you are deleting the card In the card index. So the book is still on the shelf. But every once and awhile the librarian will clean out books that are not in the index to clear up shelf space. So a deletion just removes the index and not the contents.
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