(…) Yost describes the emergence of companies that offered consulting services, data processing, programming, and systems integration. He examines the development of industry-defining trade associations; facilities management and the firm that invented it, Ross Perot’s EDS; time sharing, a precursor of the cloud; IBM’s early computer services; and independent contractor brokerages. Finally, he explores developments since the 1980s: the transformations of IBM and Hewlett Packard; the offshoring of enterprises and labor; major Indian IT service providers and the changing geographical deployment of U.S.-based companies; and the paradigm-changing phenomenon of cloud service.