hard disk
US /ˌhɑːrd ˈdɪsk/
UK /ˌhɑːrd ˈdɪsk/

1.
disco rigido, hard disk
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 disk in my old computer.
Devo sostituire il disco rigido nel mio vecchio computer.
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All your files are stored on the hard disk.
Tutti i tuoi file sono memorizzati sul disco rigido.