Thenexttenyearswillseedistributedreal-timecomputersystemsreplacingmanymechanicalandhydrauliccontrolsystemsinhigh-dependabilityapplications.Intheseapplicationsafailureinthetemporaldomaincanbeascriticalasafailureinthevaluedomain.Thispaperdiscussessomeofthetechnologytrendsthatexplainwhy