A computer's hard disk is a stiff magnetic disk on which data and programs can be stored.
hard disk in British English
noun
a disk of rigid magnetizable material that is used to store data for computers: it is permanently mounted in its disk drive and usually has a storage capacity of a few gigabytes
hard disk in American English
a computer disk with a rigid metal base
see also floppy disk
Examples of 'hard disk' in a sentence
hard disk
The plant produces components for computer hard disk drives.
Times, Sunday Times (2007)
What's the best way to use it to back up my computer hard disk for safety?
Times, Sunday Times (2007)
And it plans to erase the hard disk of any computer that doesn't run its search engine.
Times, Sunday Times (2007)
In other languages
hard disk
British English: hard disk /hɑːd dɪsk/ NOUN
A hard disk is a hard plastic disk inside a computer on which data and programs are stored.