Mars Rover used Dos
See Dos still as its users :lol:. http://forevergeek.com/news/nasa_dos_glitch_nearly_killed_mars_rover.php

I definantly understand why, I mean, minimal hardware, minimal overhead... Everything we are shooting for with our project. Maybe we should get in touch with NASA.... :lol:

From the article: In a presentation at the Hot Chips conference here, Denise said that the real issue was an embedded DOS file system whose directory structure kept growing and growing. When the rover's embedded operating system then told the flash memory to mirror the data structure in RAM, the unexpectedly large file caused a fatal error and an almost continuous reboot cycle, he said. The problem was with the flash memory drive and DOS file system. The OS that powers the rovers is VxWorks by WindRiver Technologies. Take a look at http://www.windriver.com/device_designs/aerospace_and_defense/nasa_jpl_mars_rovers.html for more details on VxWorks.