KW>  JK> No but a virus is able to mark sectors on your disks as bad
KW>  JK> and then you will not be able to use these sectors.
KW>  JK> This is probably the nearest you can get to a virus that destroys
KW>  JK> hardware.
KW>
KW> but it's so trivial... you can simply remove the bad sector markers...
KW> whatever software can do, software can undo...
Yes, but there is a virus or some viruses that can do so that you aren't able 
to use your printer, keyboard, mouse or some other equipment. It don't 
destroy the hardware but it stops you from using it.
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