With its monumental financial restructuring, which finally relieved the company of an intolerable debt burden, Concurrent Computer Corp, based in Oceanport, New Jersey is again in a position to devote all of its attention to its business and to future product plans. Staying loyal to the MIPS Technologies R-series RISC architecture, Concurrent is to develop an R4000-based Unix real-time system for shipment next year. The R4000 multiprocessor will replace the company’s R3000-based Series 8000 and 68040-based Series 7000 Unix machines, according to Denis Brown, Concurrent’s chairman and chief executive. He also hinted at a release of a new machine next year. The 1993 shipment plan for the R4000 machine depends on the availability schedule of the multiprocessing version of the part, which has been delayed for a year and is now in final testing, Brown said. Although Concurrent’s Series 3200 proprietary machines provide about two thirds of the company’s total sales, it expects its Unix line to take over. Concurrent is also restricting its sales focus to seven vertical markets to maintain its profits. Ahead of the R4000 roll-out, Concurrent is to upgrade the 7000 to a 33MHz clock from 25MHz.