[comp.lang.pascal] detecting disk drive serial numbers?

J_SCHULL@acc.haverford.edu (Jonathan Schull) (11/19/90)

DOS 4.0 can apparently detect hard drive serial numbers.

My questions:

  Are these really unique drive-specific serial numbers?

  Do ALL drives (floppy and/or hard) have serial numbers?

  How can they be accessed without DOS 3.x?

  With Turbo Pascal?



Thanks!