Disc or disk
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A disc or disk generally refers to a round flat object, although the usage varies between different variants of English: see Disc or disk (spelling) for the origin of the two spellings and regional differences[1]. Common types of disc include:
- Flying disc or, more specifically, a Frisbee, a disk-shaped toy
- Intervertebral disc, in the spines of vertebrates
- Accretion disc, in astrophysics
- Parking disc, or parking disc machine
- Disk (mathematics), see also Unit disk
The spelling disc is commonly used for audio and video recording media, including:
- Gramophone records (also "phonograph record" in U.S. English)
- Optical discs, the most common of which are:
- Disc film
The spelling disk (sometimes viewed as an abbreviation of diskette) is used for magnetic recording media (see disk storage), including:
- Hard disk, also known as a hard drive
- Floppy disk, or diskette
- RAM disk
- Also (perhaps erroneously) to refer to tape drives and flash memory cards for both music and computer data
DISC can stand for:
- The DISC assessment (or personal profile system), a psychological test
- DISCs - Domestic International Sales Corporations in US law
DISK can stand for:
[edit] Notes
- ^ This article therefore mixes the variant spellings, but attempts to use the dominant spelling whenever this is clear from the context or other articles.
[edit] See also
In astrophysics:
In data storage:
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