Disc
From Wikipedia, the free encyclopedia
A disk or disc generally refers to a round flat object, although the usage varies between different variants of English (see spelling of disc 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
- Parking disc, or parking disc machine
- Disk (mathematics), see also Unit disk
- Tax disc, a vehicle licence
- Disc brake
The spelling disc is commonly used for audio and video recording media, including:
- Transcription disc (gramophone record or "phonograph record" in U.S. English)
- Aluminum disc
- Optical disc, 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
The spelling "disk" is also used in science, such as
- Accretion disk, in astrophysics
- Protoplanetary disk
- Debris disk
DISC can stand for:
- The DISC assessment (or personal profile system), a psychological test
- DISCs - Domestic International Sales Corporations in US law
- Death Inducing Signaling Complex
- Department of Information Systems Club (Arizona State University)[2]
DISK can stand for:
- ^ This article therefore mixes the variant spellings, but attempts to use the dominant spelling whenever this is clear from the context or other articles.
- ^ See asudisc.org for more information.
In astrophysics:
In data storage: