6 events with tag "Bell Labs"
1939
ID: 4477
George Stibitz builds Complex Number Calculator at Bell Labs - first electric digital calculator using telephone relays
ID: 4477
1947
ID: 1590
Transistor invented at Bell Labs
ID: 1590
1947
ID: 4297
December 23, 1947
Bardeen, Brattain, and Shockley demonstrate first working transistor at Bell Labs - revolutionizes electronics
ID: 4297
1948
ID: 1610
The transistor is invented at Bell Labs, beginning the semiconductor materials revolution
ID: 1610
1954
ID: 1693
The first silicon solar cell is developed at Bell Labs
ID: 1693
1969
ID: 4325
Ken Thompson and Dennis Ritchie begin developing UNIX at Bell Labs - foundation of modern operating systems
ID: 4325