• They employed folks like Nyquist and Shannon, who laid the foundations of modern information theory and electronic engineering while they were employees at Bell.
• They discovered the first evidence of the black hole at the center of our galaxy in the 1930s while analyzing static noise on shortwave transmissions.
• They developed in 1937 the first speech codec and the first speech synthesizer.
• They developed the photovoltaic cell in the 1940, and the first solar cell in the 1950s.
• They built the first transistor in 1947.
• They built the first large-scale electronic computers (from Model I in 1939 to Model VI in 1949).
  -They employed Karnaugh in the 1950s, who worked on the Karnaugh maps that we still study in engineering while he was an employee at Bell.
• They contributed in 1956 (together with AT&T and the British and Canadian telephone companies) to the first transatlantic communications cable.
  -They developed the first electronic musics program in 1957.
  -They employed Kernighan, Thompson and Ritchie, who created UNIX and the C programming language while they were Bell employees.

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