Jon Peddie Research reports that roughly 1.7 mln workstations were shipped in 2004, accounting for approximately $4.5 bln in worldwide revenue. Of that, the PC-derived Workstation, a machine that leverages technologies derived from the high-volume PC platform, accounted for roughly 92% of units and 88% of revenue, while the share of traditional proprietary (RISC/Unix) workstations continued to shrink.