Thin disk

The thin disk is a structural component of certain galaxies. The Milky Way's thin disk is thought to extend up to ~350 parsecs (1,100 ly) in the vertical axis and contributes about 85% of the stars in the Galactic plane. It can be set apart from the thick disc of a galaxy since the latter is composed of older population stars created at an earlier stage of the galaxy formation. Stars in the thin disk, on the other hand, are created as a result of gas accretion at the end stage of a galaxy formation.

The thin disk contains stars with a wide range of ages and may be divided into a series of sub-populations of increasing age. Notwithstanding, it is considered to be considerably younger than the thick disk.

See also

External links

References

Disc

Disc or disk (computing and American English) may refer to:

Data storage

Everytime You Touch Me

"Everytime You Touch Me" is a song by American electronica musician Moby, released as the third single from his album Everything Is Wrong. The vocals of "Everytime You Touch Me" are performed by Rozz Morehead and Kochie Banton, both of whom appear on Moby's previous single, "Feeling So Real". Before the release of the "Everytime You Touch Me" single, a remix competition was held. The winning remix, made by Jude Sebastian, is featured as track three on the single.

Track listing

Disk storage

Disk storage is a general category of storage mechanisms where data are recorded by various electronic, magnetic, optical, or mechanical changes to a surface layer of one or more rotating disks. A disk drive is a device implementing such a storage mechanism. Notable types are the hard disk drive (HDD) containing a non-removable disk, the floppy disk drive (FDD) and its removable floppy disk, and various optical disc drives and associated optical disc media.

(The spelling disk and disc are used interchangeably except where trademarks preclude one usage, e.g. the Compact Disc logo. The choice of a particular form is frequently historical, as in IBM's usage of the disk form beginning in 1956 with the "IBM 350 disk storage unit").

Background

Audio information was originally recorded by analog methods (see Sound recording and reproduction). Similarly the first video disc used an analog recording method. In the music industry, analog recording has been mostly replaced by digital optical technology where the data are recorded in a digital format with optical information.