Good fun but I think this is incorrect:
Still the only personal computer to offer a choice of microchips as its main processor
The impressive RISC Pc, I had one and it was the most stable system I have ever used, so obviously biased, mainly a UK thing as Acorn were based near Cambridge UK:http://en.wikipedia.org/wiki/Risc_PC
CPU: Dual-processor slots, accepting the following chips on a special daughterboard: ARM6 at 30 MHz or 33 MHz, ARM7 at 40 MHz, StrongARM at 203 MHz, 233 MHz or 300 MHz+. 486 and 586-based co-processors at up to 133 MHz, and DSP chips (third party) were also available. An "Hydra" multi-processor development system from Simtec allowing and extra 4x ARM6 or ARM7 CPU cards, mainly using the Linux OS.