The Acorn Archimedes & RISC-PC lines:
Acorn Computer's answer to the other 16-32bit single-user home/work computers (mainly the Amiga and AtariST lines), these were the first RISC-using computers that price-wise did not need a leg and a arm (Pun not thought at all, and truth to be told- It's CPU ISA was named "ARM", it's the same ARM heritage found more commonly today in apple's M-series macs) severed in order to buy the system. While the in-house CPU was faster then many of the m68k & x86-using personal systems out there at the time, it also was price-wise out of reach for many households of the time.
Eventually the line would be superseded by the long-running RiscPC line, which composed of the RiscPC series and later the A7000 that was sold as a replacement to the Archimedes line as a whole. Castle; which inherited the hardware lines after the demise of Acorn, would replace these with the Iyonix in 2002, a year after the RiscPC would cease sales in 2003 and the A7000+ in 2004.