 So the RISC and RISC 5 really stands for reduced instruction set computing, ARM chips or RISC chips, digital units you used to run on alpha, that was a RISC chip, PA RISC. So then you've got CISC which is complex instruction set computing, Intel x86. And the primary difference really is that as you do a cycle in the CPU for a clock cycle, a RISC machine would execute one instruction per cycle whereas a CISC processor would actually take a few cycles to complete an operation. I'm sure we could get some zealots of Intel that would probably disembowel me and say you're completely wrong for this reason, this reason, this reason. But the fact is that as a result as a result RISC is a little bit from performance better performance perspective.