I have retained (as a collector's item) a very old (around 1994) Midwest Micro Elite Soundbook TS30AS laptop (probably one of the very first laptops - 640 Kb memory). It is still operating, and I tried to boot it up . . . and it is asking for a boot disk. The floppy drive is the 3 1/4 size. I'm not sure what operating system is on the laptop. What would you suggest? I see that Midwest Micro was acquired by Systemax in 1997. Thanks!