SyStem> /riSk-ickS/ (Or "RISC iX") BSD-baSed Unix developed by Acorn ComputerS Ltd. (Cambridge, UK) to run on 32-bit ARMRISC proceSSorS. RISCiX waS launched circa 1989 for three production machineS - the R140, R260, the diScleSS R225 and other prototypeS. (2003-09-24)