When Oceanport, New Jersey-based Concurrent Computer Corp announced its new Maxion line of 150MHz R4400 RISC-based multiprocessors last October (CI No 2,316) there was little in the way of new software, but the company has now made good on that with announcement of Concurrent RTU Real-Time Unix Version 7.0, claiming it to be the most technically advanced, globally available implementation of the Unix System V.4.2MP. It also added new ANSI C, C++, Fortran 77 and Real-Time Ada compilers; a Distributed Interactive Simulation network analysis toolkit; data acquisition products for open dynamic analysis solutions; and graphics applications interface software. Compliances include Posix 1003.1-1990 basic system call interface; Posix 1003.2 X/Open standard subset basic shell programming language, command line, and function interface; the Federal Information Processing Standards 151-1 and 151-2; and the X/Open Portability Guide Issue 4. Concurrent has also enhanced System V.4.2MP to implement the new IEEE POSIX 1003.1b, formerly 1003.4, real-time extensions; and the proposed IEEE POSIX 1003.1c, formerly 1003.4a, threads extensions.The new programming tools and compilers come out of Concurrent’s agreement with Edinburgh Portable Compilers Ltd for C, C++ and Fortran 77; and with Verdix Corp for the Verdix Ada Development System. The Distributed Interactive Simulation Network Analysis Toolkit enables developers and managers of networks and systems to monitor and analyse network traffic within a simulation envir onment. The NPGL-X software enables two- and three-dimensional graphics applications developed with the Iris GL 4.0 application programming interface from Silicon Graphics Inc to run on the Maxion. No prices.