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The forces that fractured the computer industry are bearing down on all industries. In the face of changing interaction costs and the new economics of electronic networks, companies must ask themselves the most basic of all questions: what business are we in?
In the late 1970s, the computer industry was dominated by huge vertically integrated companies such as IBM, Burroughs, and Digital Equipment. With their vast scale advantages and huge installed bases, they seemed unassailable. Yet just ten years later, power in the industry had shifted: the behemoths were struggling to survive while an army of smaller, highly specialized companies was thriving. What happened?
The industry's sea change can be traced back to 1978, when a then-tiny company, Apple Computer, launched the Apple II PC. The Apple H's open architecture unlocked the computer business, creating opportunities for many new companies that specialized in producing specific hardware and software components. Immediately, the advantages of the generalist- size, reputation, integration-began to wither. The new advantages-creativity, speed, flexibility-belonged to the specialist.
The story of the computer industry illustrates the crucial role played by interaction costs in shaping industries and companies. Interaction costs represent the money and time expended whenever people and companies exchange goods, services, or ideas? The exchanges can occur within companies, among companies, and between companies and customers, and they can take many everyday forms, including management meetings, conferences, telephone conversations, sales calls, reports, and memos. In a real sense, interaction costs are the friction in the economy
Taken together, interaction costs determine the way companies organize themselves and form relationships with other parties. When the interaction costs of undertaking an activity internally are lower than the costs of undertaking it externally, companies tend to incorporate it into their own organization rather than contract it to outside parties. All else being equal, a company will organize itself in whatever way minimizes its overall interaction costs.
Apple's open architecture sharply reduced interaction costs in the computer industry. By conforming to a set of welldocumented standards, companies could, for the first time, work together easily to produce complementary products
and services. As a result, tightly coordinated webs of specialized companies, with names such as Adobe Systems, Apple, Intel, Microsoft, Novell, and Sun Microsystems, could form and ultimately...