hard drive
US /ˈhɑːrd draɪv/
UK /ˈhɑːrd draɪv/

1.
hard disk, disco rigido
a high-capacity, self-contained data storage device containing a read-write mechanism and one or more platters, used in computers.
:
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I need to replace the hard drive in my old laptop.
Devo sostituire l'hard disk nel mio vecchio portatile.
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Make sure to back up your data to an external hard drive.
Assicurati di eseguire il backup dei tuoi dati su un hard disk esterno.