For sure you can. But it is possible that you prefer to use FreeDOS, a free version of DOS. And, why not, may be you prefer to use DOSBox, a DOS console you can run inside Linux.
And, if none of above convinces you, may be you prefer to use an USB stick to boot up instead of a too old floppy drive. And, why not, you can do a 3 possibilities booting GRUB, instead of a chainload boot: M$, DOS and Linux on the same booting list! And forget floppies and USB sticks at booting up your computers.