With an eye on lucrative US government contracts Control Data Corp is set to offer a native implementation of Unix on its Cyber mainframes. The Minneapolis, Minnesota-based company says that this addition will give it application compatibility across its range of hardware: the bought-in Cyber workstations, the ETA-10 supercomputers and the Cyber mainframes. The native Unix implementation, which is due for delivery during 1989, will be offered as an alternative to the proprietary NOS/VE Network Operating System/Virtual Environment. NOS/VE, which has fault tolerant, security and workload management features, will still be in demand for production environments, says CDC. Previously only a shell implementation of Unix, VX/VE, developed with help from Human Computing Resources, Toronto, was available under NOS/VE. This implementation is still available to users wanting some Unix facilities with NOS/VE.