Dell was founded in 1984 by Michael Dell, the computer industry's longest-tenured chief executive officer, on a simple concept: that by selling computer systems directly to customers, Dell could best understand their needs and efficiently provide the most effective computing solutions to meet those needs. This direct business model eliminates retailers that add unnecessary time and cost, or can diminish Dell's understanding of customer expectations. The direct model allows the company to build every system to order and offer customers powerful, richly-configured systems at competitive prices. Dell also introduces the latest relevant technology much more quickly than companies with slow-moving, indirect distribution channels, turning over inventory every three days on average.