“Disk” or “Disc” ?
March 28, 2007 — syl2000I tend to pride myself on my knowledge of spelling (both UK and USA), but the distinction between “disk” and “disc” had hitherto eluded me.
Now I’ve finally found out, so if you’ve been wondering about this too, read on…
“Disk” first came into use in the mid-17th century, being spelled with a “k” on the model of older words such as “whisk”. “Disc”, derived from the word’s Latin source “discus”, arose half a century later. Both spellings were used interchangeably into the 20th century, with people in Britain tending to use “disc” more often, and Americans preferring “disk”.
Late in the 19th century, the “c”-spelling was used when referring to the newly-introduced flat plate (as opposed to Edison’s cylindrical drum) for sound recordings, and “disc” became the conventional spelling in the music industry.
In the 1940s, American computer scientists chose “disk” to refer to their flat storage devices, and this convention was followed in such compounds as “hard disk” and “floppy disk”.
When the new storage technology of the CD arose in the 1970s, both “k”- and “c”-spellings competed for an initial period. Computer specialists preferred their familiar “disk”, while people in the music industry, accustomed to ”disc”, continued to use that spelling. These tendencies soon became established practice in the different industries.
That is why we buy “compact disks” in computer stores but get the same storage devices with different data as “compact discs” in music stores.
[ information abstracted from "com·pact disk or com·pact disc" ]
