Greene and Rosenblum were both graduate students at the University of California, Berkeley. In 1998, VMware was founded by Diane Greene, Mendel Rosenblum, Scott Devine, Ellen Wang and Edouard Bugnion. announced an agreement to acquire VMware in a cash-and-stock transaction valued at $61 billion. VMware ESXi, its enterprise software hypervisor, is an operating system that runs on server hardware. VMware's desktop software runs on Microsoft Windows, Linux, and macOS. VMware was the first commercially successful company to virtualize the x86 architecture. is an American cloud computing and virtualization technology company with headquarters in Palo Alto, California.