NCR Corp, Dayton, yesterday unveiled NCR Tower NetWare networking software that enables the Unix-based Tower processors to be used as high-performance file, application and communications servers on local area networks running Novell Inc’s NetWare operating system. NCR also added two new Tower models, the entry-level 20MHz 68030-based 32/300 at $11,290 with 32Mb memory, one 5.25 or two 3.5 SCSI disks and three Multibus I slots; and the 32/500, which has the same processor but comes with 64Mb memory, 1.1Gb disk and seven Multibus I slots, at $19,790. Through bridge products, the NCR Towers support multiple communciations products such as Token Ring, ARCNet, AppleTalk, and concurrent TCP/IP and Ethernet-based Tower NetWare environments. General availability of Tower NetWare is the first quarter 1990 and prices will start at $5,200.