Binghamton /ˈbɪŋəmtən/ is a city in, and the county seat of, Broome County, New York, United States. It lies in the state's Southern Tier region near the Pennsylvania border, in a bowl-shaped valley at the confluence of the Susquehanna and Chenango Rivers. Binghamton is the principal city and cultural center of the Binghamton metropolitan area, home to a quarter million people. The population of the city itself, according to the 2010 census, is 47,376.From the days of the railroad, Binghamton was a transportation crossroads and a manufacturing center, and has been known at different times for the production of cigars, shoes, and computers. IBM was founded nearby, and the flight simulator was invented in the city, leading to a notable concentration of electronics- and defense-oriented firms. This sustained economic prosperity earned Binghamton the moniker of the Valley of Opportunity.