Supply chain management is the vital business function that coordinates and manages all the activities of the supply chain linking suppliers, transporters, internal departments, third-party companies, and information systems. Also, supply chain management provides the company with a sustainable, competitive advantage, such as quick response time, low cost, state-of-the-art quality design, or operational flexibility. Dell Computer Corporation is a good example of a company using its supply chain to achieve a sustainable competitive advantage. Following this line of thought, answer the following questions: 1. Discuss the three components of a company's supply chain structure, namely, external suppliers; internal functions; and external distributors. 2. Explain how Dell Computer Corporation is using its supply chain to achieve a sustainable competitive advantage