Can a computer rust?

Hello

Yes. Especially if it is exposed to moisture. This is generally the cause of keyboard failures, or worse, when a laptop or a desktop keyboard gets accidentally wet.

As for rusting, that's another story, since rust is iron oxide :P

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Before asking a question: 1° The brain doesn't wear out if you use it, don't hesitate to use it!
2° Google is your friend, and the search engine of CCM too, do a search!

I thought the components were undergoing treatment!
Thank you!