Founding of Comshare 1966; Rick Crandall timesharing pioneer; joint development with Tymshare, U. Cal. Berkeley; interactive computing; SDS930; SDS940; Scientific Data Systems Sigma 9; timesharing operating systems; early tech IPO in 1968; Crandall Chairman of ADAPSO; ITAA; transition to software products; System W; decision support system; multi-dimensional modeling; On Line Analytical Processing (OLAP), distributed computing; Xerox PARC; interactivity; EIS; Executive Information Systems.