A master device for communicating with a number of slave devices through a communication link having a limited resource. One embodiment is directed to an insulated bag mounted in the race vehicle having a collapsible fluid bladder and a cooling medium within the bag. The manager module then forwards those communications to the selected intermediate destination computing node for further handling. The instructions decoded in the first instruction decoding stage is stored temporarily in instruction flow registers. The tape measure has a housing, a coiled measuring tape, a tape tip, and a marker having a marking wheel mounted on an axle. The masking regions are used to eliminate the regions of the user interface layout that are expected to change during a verification process.