In spite of these measures, some components might fail. Hence, for critical components, redundancy is provided. As far as possible, the components should be in series, so that the failure of one doesn't affect the others. Dissimilar redundancy should be used, i.e. two processors of different make and grade should be used so that they don't get affected by radiation equally. <br \> If you are done reading this page, you can go back to [[Electrical Subsystem]].