Thomas A. Rolander is an entrepreneur, engineer, and pioneering developer of operating systems and software applications for personal computers. While working at Digital Research Inc. (DRI) with Gary Kildall, the "father" of CP/M, in 1979 he created the multitasking multiuser operating system MP/M for microcomputers that laid the groundwork for later Digital Research operating system families such as Concurrent CP/M, Concurrent DOS and Multiuser DOS. He received a Diamond Award for Entrepreneurial Excellence from the University of Washington (UW) in 2013.