General Motors Research Laboratories
General Motors Research Laboratories are the part of General Motors responsible for creation of the first known operating system (GM-NAA I/O) in 1955 and contributed to the first mechanical heart, the Dodrill-GMR, successfully used while performing open heart surgery.
- American Heart Association. The Mechanical Heart celebrates 50 lifesaving years. 22 10 2002. 9 February 2008 http://www.americanheart.org/presenter.jhtml;jsessionid=EFNP3NSFUBXLICQFCXQCDSQ?identifier=3005888[permanent dead link]