1 ene 1947 año - American engineers John Bardeen and Walter Houser Brattain together with their group leader William Shockley invented transistor.

Descripción:

Transistors are the key active components in almost all modern appliances. They had a large amounts of advantages compared to vacuum tubes, and thus are sometimes considered as "the invention of the century".

Riordan, Michael. “Transistor.” Encyclopædia Britannica, Encyclopædia Britannica, Inc., 9 Oct. 2018, www.britannica.com/technology/transistor.