ARM is not a new processor architecture. Virtually every smartphone today has one inside and has since the earliest days of iOS and Android. In fact, ARM goes all the way back to 1983, when transgender woman Sophie Wilson began designing the instruction set for the Acorn RISC Machine. Despite its long history, however, it’s never been considered a serious contender for workstations or desktop machines where x86 reigns supreme. Even in the data center, ARM is a comparative newcomer, with few cloud providers supporting it.