Siemens Nixdorf Informationssysteme AG introduced its 100MHz MIPS R4600-based RM200 client and server systems for Unix and Microsoft Corp Windows NT at Comdex last week. The machines have a Super VGA graphics subsystem with 2Mb of memory, and run Sinix 5.4 Unix. OEM customers also have the option of simply buying RM200 system boards, which fit into standard personal computer housings. Prices start at $4,845 for a RM200 business workstation with 16Mb of RAM, 520Mb of hard disk drive, and a 15 VGA monitor. Prices for the workgroup server version, with 32Mb of RAM, 1Gb disk and EISA bus, start at $7,344. First shipments are scheduled for July.