disk

(redirected from discs)
Also found in: Dictionary, Thesaurus, Medical, Financial, Acronyms.
Related to discs: Intercalated discs

disk

1. The two-dimensional projection of the surface of a star or planet.
2. See Galaxy; galaxies.

Disk

A flat, circular, raised ornament, carved as a series of disks adjacent to each other.

disk

[disk]
Also spelled disc.
(astronomy)
A relatively thin layer of material distributed in the central plane of a spiral galaxy, in contrast to the nucleus or halo.
(biology)
Any of various rounded and flattened animal and plant structures.
(computer science)
A rotating circular plate having a magnetizable surface on which information may be stored as a pattern of polarized spots on concentric recording tracks. Also known as magnetic disk.
(engineering acoustics)
(mathematics)
The region in the plane consisting of all points with norm less than 1 (sometimes less than or equal to 1).

disk

(storage)
1. magnetic disk.

2. compact disc.

3. optical disk.

Note: the american spelling, "disk", is normal for most computer disks whereas "compact disc", having come to computers via the audio world, is correctly spelled with a "c", indeed, this spelling is part of the CD standard.

disk

A storage device that uses rotating platters and provides random access to the data. See hard disk, magnetic disk, optical disc, CD-ROM, DVD, floppy disk, RAMAC and DASD.


Disk and Memory Work Together
On the disk, data are stored in sectors, which hold a chunk of data (typically 512 bytes) and are the smallest unit that can be read or written. Memory is broken up into squares like a checkerboard, each square holding one byte. The contents of any single byte or group of bytes can be calculated, compared and copied independently. That is how fields are put together to form records and broken apart when read back in.
References in periodicals archive ?
You were free to focus on buying the media preferred or could make your buying decisions based on market economics--which brand name discs were least expensive when you went to the store.
Whereas current discs hold a maximum of around 10 gigabytes, DVD-14 and 18 will offer close to 14 and 18 gigabytes, respectively.
This database consists of three discs that include Bankruptcy Code, Rules & Forms; Bankruptcy Code Annotations; Bankruptcy Cases 1979-1983, 1984-1987, & 1988; West's Bankruptcy Digest; Cowans Bankruptcy Law and Practice; Bankruptcy Cases of Interest; and Bankruptcy Bibliography.
RAM media is available both as a bare disc and in a protective cartridge.
All offer higher flow than standard disc resins to control birefringence and dishing and to ease replication of the smaller and more closely placed pits in the thinner discs.
These discs will be compatible with a new breed of DVD Video players and recorders that read 120mm and 80mm discs and, of course, the discs are compatible with most contemporary DVD-ROM and DVD-RAM drives found in state-of-the-art PCs, and this is just the beginning.
Then there are two-sided SD discs with 10 and 18 GB capacity (5 or 9 GB on each side).
We even use this technology for extremely small orders of less than 200 discs.