... bootable (does not have io.sys, msdos.sys, and command.com), then an error message is generated that says “Non-System disk or disk error. Replace and strike any key when ready” will display. ... Step 4 In addition to the five files mentioned above, there are certain utilities that can be helpful when working with a computer that does not have an operating system: • DEFRAG.EXE • EDIT.COM ... autoexec.bat, command.com, config.sys, io.sys, and msdos.sys. Assuming all five files are available on a bootable disk, what order are these files accessed when the system is booted? 1. __________________...