The systems aboard Crew Dragon do not use the multicore capabilities of a processor, and instead perform each computation separately on the two cores, comparing results. The three flight computers with dual$-$core processors are installed to act as six independent computers that constantly verify the others' calculations and computations. The processor of a computer is responsible for fetching an instruction and processing$/$ executing such instruction. There is a device that temporarily stores that instruction so that it can be processed by the CPU. This device is known as $($i$)$and it is considered to be $($ii$)$as the data getslost when the computer is turned off. A$.($i$)$ Read$-$Only Memory, $($ii$)$ volatile B$.($i$)$ cache, $($ii$)$ volatile C$.($i$)$ Random Access Memory, $($ii$)$ volatile D$.($i$)$ Random Access Memory. $($ii$)$ non$-$volatile