It comes in handy for people who wants to run Linux on their notebook without being an engineer and look at Mac users with envy because of their “ready to work” time on their macbooks of 1-2 seconds after they open the lid.
On a server, it solves nothing.
If you had a Sound Blaster 16, you had an extra IDE port on the board, which DOS couldn’t see and you had to load special drivers to use them. Usually it was used for the CD-ROM.