[debian3]

You forgot no floppy disk, no COM1, no parallel port, no S-Video, no PS/2, no DOS support.

[badsectoracula]

FWIW all those you mention can be added with a USB device (even DOS, you can boot FreeDOS via a CD or even external floppy on modern PC) whereas the stuff jfkebwjsbx mentions cannot (except the optical drive).