"Tweak" wrote in message
...
Which operating system/systems is currently being used in spacecrafts?
Was
FlightLinux implemented as the standard? Any information you can provide
would be greatly appreciated. Thanks.

There is as far as I know no "standard".

The Shuttle uses HAL/S and I don't think you can really descibe it as having
an OS.

Many spacecraft have software written directly to the hardware with no
intervening OS.