Lee Data

Lee Data Corporation was an American computer company based in Eden Prairie, Minnesota, and active as a hardware company from 1979 to 1990. It was principally founded by John M. Lee and John Roy to sell data terminal systems compatible with the IBM 3270. It found success going into the mid-1980s, with its offerings praised for their innovations and lower prices compared to IBM's 3270 line, but began faltering in the 1980s when IBM themselves began adopting such innovations.

In 1990, the company sold off their terminal assets and pivoted to provide equipment and software for telecommunications businesses under the name Apertus Technologies, Inc.. Apertus changed their name again to Carleton Corporation in the mid-1990s. Carleton was acquired by Oracle Corporation in 2000.