til disk is actually preferred in American English. from your link:
Usage notes
In most varieties of English, disk is the preferred spelling for magnetic media (hence floppy disk, hard disk, disk drive), whereas disc is preferred for optical media (hence compact disc, digital versatile disc, optical disc). For all other uses, disk is preferred in American English and acceptable in Canadian English, and disc otherwise.
Find me an American who says his car is equipped with “disk brakes.” “Disk” is peculiar to computer magnetic storage media, and “disc” for a round object that probably spins.
Wikipedia tells me that they were initially developed in England and finally patented in Germany, so I’m guessing that’s why the British spelling is used in that case.
til disk is actually preferred in American English. from your link:
Find me an American who says his car is equipped with “disk brakes.” “Disk” is peculiar to computer magnetic storage media, and “disc” for a round object that probably spins.
https://en.m.wikipedia.org/wiki/Disk_(mathematics) preferred spelling here
https://www.merriam-webster.com/dictionary/disk main entry lists disc as a variant spelling while the entry for disc: https://www.merriam-webster.com/dictionary/disc notes it as a variant spelling of disk
https://www.dictionary.com/browse/disc links to disk
Cambridge online dictionary seems to agree with you more but it’s always been the shittiest of them
Wikipedia tells me that they were initially developed in England and finally patented in Germany, so I’m guessing that’s why the British spelling is used in that case.