The technology that powers organizations has undergone several major transitions since the birth of computing. In the 1960s, the mainframe was the dominant compute model, and it gave way to minicomputing about a decade later. In the 1990s, businesses eventually shifted to PC-based computing in the client/server era. This model was eventually supplanted by Internet computing as the dominant compute model. Today, the technology industry finds itself in the midst of the most significant transition ever: the shift to mobile computing.