Why do I need to use eject my usb? [Solved/Closed]

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Hi, I know that you're supposed to eject stuff before pulling it out of a computer but why?

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Here is a pretty short video I found that explains when and why you have to eject USB drives:
https://www.youtube.com/watch?v=D-_DvMh3tX8
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Because the computer buffers data being written to the device. If it has not completed those buffered blocks of data you will loose the data and sometimes render the device unusable until reformatted.

Ejecting the device forces the final data to be written.
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If anyone has anything to add on the topic I'd love to hear it, maybe someone knows how it really works indepth?

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