Bell Labs - technical definition

The research and development arm of the AT&T Bell System.As a result of the Modified Final Judgement (MFJ) that broke up the Bell System in 1984, Bell Labs and AT&T Technologies merged to form Lucent Technologies, which was acquired in 2006 by Alcatel, a French company to form Alcatel-Lucent. Undoubtedly, Bell Labs was once one of the greatest scientific laboratories the world has ever known. Bell Labs innovations include the transistor (1947), cellular telephone (1947), solar cells (1954), the laser (1958), digital transmission (1962), communications satellites (1962), the Unix operating system (1969), and the digital signal processor (DSP) (1979).