file: module and character special files

[Miguel Barreiro]

> he told us about the re-writing of the code in a navy attack-plane. one
> thing they wanted to correct was the ''error'' message displayed when
> the flight level indicator (altimeter) broke. (it displayed 22000 feet,
> since some programmer had decideed it would be a good idea to show the

Abroad I suppose - aren't swedish warplanes supposed to show flight level
in meters? :-)