'They were invented in 1947 & by the 1990s millions were being placed on a single chip'
Transistors
20th CENTURY INVENTION: They were invented in 1947 & by the 1990s millions were being placed on a single chip
They were invented in 1947 & by the 1990s millions were being placed on a single chip
They were invented in 1947 & by the 1990s millions were being placed on a single chip
20th CENTURY INVENTION
Transistors
20th CENTURY INVENTION