Milpitas, Calif. -- Phoenix Technologies, a Milpitas-based developer of core systems software, said on Thursday that it will acquire General Software, a Bellevue, Wash.-based developer of embedded firmware that is at the heart of millions of devices. Financial terms of the deal, expected to close later this quarter, were not disclosed. Phoenix said that the acquisition will expand its presence in a variety of applications and devices, from IP network routers to medical devices. General Software's product portfolio includes a BIOS adaptation kit for embedded development, a 32-bit operating environment and a firmware application suite. Clients include Boeing, Cisco Systems, GE Healthcare, Microsoft, Nielsen Media Research and Siemens Acuson.