Concurrent Computer Corp’s US Department of Defense-funded Alpha project to develop a large, real-time, distributed operating system, is now into its second phase of testing, the company says. It will come with a Posix interface and will be announced sometime next year when the US Government puts Alpha into the public domain. Thereafter Concurrent will develop a commercial product based upon it, and says it is already talking to two vendors interested in implementing the technology on their systems. Concurrent has already signed up with AT&T Co for its B1 secure multi-processing version of Unix now under development, but says it hasn’t decided whether to integrate the technology with its Real-Time Unix, or to offer it as a separate product.