Dell Inc. is an American multinational technology company founded in 1984 that develops, sells, repairs, and supports computers and related products and services. Headquartered in Round Rock, Texas, Dell employs over 100,000 people worldwide and sells personal computers, servers, data storage devices, network switches, software, computer peripherals, and electronics built by other manufacturers. Dell pioneered the direct sales model and build-to-order approach to computer manufacturing and has since expanded into IT services through acquisitions. The company has faced challenges in recent years from a maturing PC market and increased competition.