Two decades ago, the US high end microprocessor industry was a lively, diverse market where about five various instruction set architectures battled it out across the workstation and server fields. You had choices like DEC’s Alpha – the speed leader; MIPS – the Silicon Graphics heart; SPARC from Sun Microsystems, IBM POWER, HP PA, the nascent X86, and a few custom architectures for MPP massive parallel processing, for instance. The rest of the world pretty much had nothing – British Transputer and German Hyperstone platforms died out due to lack of funding, while ARM was still keeping to the low end embedded arena after the end of the
