mal wrote:Durh!ronuds wrote:That's a fucking odd revisionist etymology there. Where's it from? CDs are referred to as 'compact discs' because Philips chose to transliterate from the Greek by substituting a 'c' for a kappa, rather than a 'k' (as is the fashion in European English). Most magnetic media was invented in the US, where I believe Webster's only permits the 'disk' spelling.
There's a difference!
A disc refers to optical media, such as an audio CD, CD-ROM, DVD-ROM, DVD-RAM, or DVD-Video disc. Some discs are read-only (ROM), others allow you to burn content (write files) to the disc once (such as a CD-R or DVD-R, unless you do a multisession burn), and some can be erased and rewritten over many times (such as CD-RW, DVD-RW, and DVD-RAM discs).
All discs are removable, meaning when you unmount or eject the disc from your desktop or Finder, it physically comes out of your computer.
A disk refers to magnetic media, such as a floppy disk, the disk in your computer's hard drive, an external hard drive. Disks are always rewritable unless intentionally locked or write-protected. You can easily partition a disk into several smaller volumes, too.
Disks are usually sealed inside a metal or plastic casing (often, a disk and its enclosing mechanism are collectively known as a "hard drive".
On European-made computers, such as the BBC Micro, you could access the floppy disc file system either by issuing *DISC or *DISK (and in BBC BASIC you could change the cursor colour either using the COLOR or COLOUR command). By that etymology both are acceptable for magnetic media, and I would infer from that that it's entirely a stylistic spelling choice. 'CD' may stand for 'compact disc' but that doesn't stop the medium consisting of disks of plastic.
DISC was first used for CDs and stood for "Data Inside Shiny Circle", noob.