hard disk
Definition
Noun: A hard disk is a rigid magnetic disk mounted permanently inside a computer's drive unit. It is a primary data storage device used to permanently store and retrieve digital information using rapidly rotating platters coated with magnetic material.
Usage
The term "hard disk" refers specifically to the physical, non-removable storage hardware inside a computer. It is used to distinguish this type of storage from removable or floppy disks. * The computer's operating system and all my files are stored on the hard disk. * I need to upgrade my laptop because the hard disk is almost full. * Modern hard disks can store several terabytes of data.
Advanced Usage
- Hard disk drive (HDD): This is a more precise technical term that includes the entire unit containing the disk, read/write heads, and motor. While "hard disk" often refers to the entire drive unit in common usage, "hard disk drive" is the full technical name.
- The server uses a high-performance hard disk drive for data storage.
Variants and Related Words
- Hard drive: A common synonym for "hard disk" or "hard disk drive," used interchangeably in everyday language.
- HDD: The standard abbreviation for "Hard Disk Drive."
- SSD (Solid State Drive): A newer type of high-speed storage device with no moving parts, often contrasted with a traditional magnetic hard disk.
- My new computer has an SSD for the operating system and a large HDD for file storage.
Synonyms
- Fixed disk
- Winchester drive (an older technical term)
Related Phrases
- Hard disk failure: The malfunction or breakdown of a hard disk.
- I lost all my photos due to a sudden hard disk failure.
- External hard disk/External hard drive: A portable storage device that contains a hard disk in an external enclosure, connected via USB or other interfaces.
- I back up my important documents to an external hard drive.
Noun
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a rigid magnetic disk mounted permanently in a drive unit
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