Siemens Nixdorf Informationssysteme AG launched its new RW family of MIPS Computer Systems Inc RISC-based workstations at Hannover, a result of its OEM agreement with Silicon Graphics last November. The R3000- and R4000-based systems start at the low-end RW320 for computer-aided design and desktop publishing to the top-end RW460-VGXT workstation for three-dimensional work. There are five models and five graphics sub-system options. The company also announced the availability of its Sigraph chip design software on the new workstations, and on hardware from Hewlett-Packard, Sun and DEC. Previously, the software was available only on its WS workstations. The company also launched 13 new mainframes in its proprietary 7.500 Series replacing its C30 and C40 models with C50 Series as the entry level, and at the top-end, six new H130 models and two new H121s; all run the BS2000 operating system.