If our informations get stored in + and - protons, how does a drive looks like if it gets cleared? Are the memory cells are all set to zero so - protons? And could you physically reset them with a magnet or something?

 

8 hours ago, Mudozs said:

If our informations get stored in + and - protons, how does a drive looks like if it gets cleared?

Can you clarify the question a little? Protons are only positive (+). I do not know any drive that fits your description; are you asking about a hypothetical device? If you wish to discuss regular off-the-shelf hardware do you wish to discuss SSD* or HDD or both?

 

*) HDD, hard disk; electro-mechanical data storage device that stores and retrieves data using magnetic storage. 
SSD, solid-state storage device that uses integrated circuits to store data persistently

That depends on the wiping protocol. It could be the equivalent of all 0's or 1's or some other pattern.

Magnetic storage drives use magnetic domains, while SSDs use 'flash' which stores electrons in 'traps' of 2 or more voltage levels.

They are usually cleared by re-formatting, which essentially wipes the index of the stored data.
A good recovery program can still read this data, unless over-written, and good wiping programs usually over-write all the data to prevent this ( but that may take a while with >terabyte HDDs ).