Compaq Computer Corporation was a company founded in 1982 that developed, sold, and supported computers and related products and services. Compaq produced some of the first IBM PC compatible computers, being the first company to legally reverse engineer the IBM Personal Computer. It rose to become the largest supplier of PC systems during the 1990s before being overtaken by HP in 2001. Struggling in the aftermath of the dot-com bubble bust, Compaq was acquired for US$25 billion by HP in 2002. The Compaq brand remained in use by HP for lower-end systems until 2013 when, without warning, the Compaq name was quietly discontinued.