In 2010, HP acquired long-time networking innovator 3Com, solidifying its number two position in the Ethernet switch market and augmenting its networking portfolio from data center to branch. Founded by Ethernet co-inventor Bob Metcalfe in 1979, 3Com was instrumental in the development and standards acceptance of such crucial technologies as Ethernet, TCP/IP, and Unix. 3Com offered the first commercial version of TCP/IP for UNIX in 1980 and the first PC Ethernet adapter in 1982.With the combined portfolio of HP and 3Com, along with a rich history of innovation, HP now offers a comprehensive core-to-edge portfolio of networking solutions for the data center, campus, and branch.