Computer processor history

Silicon chemical element is being discovered

1823

Baron Jons Jackob Berzelius discovered silicon (Si), which today is the basic component of processors.

Discovery of Switches

1903

Nikola Tesla patented electrical logic circuits called "gates" or "switches" in 1903.

First transistor

Dec 23, 1947

John Bardeen, Walter Brattain, and William Shockley invented the first transistor at the Bell Laboratories on

First Integrated Circuit

Sep 12, 1958

The first working IC (integrated circuit) was developed by Robert Noyce of Fairchild Semiconductor and Jack Kilby of Texas Instruments. The first IC was demonstrated. (Geoffrey Dummer is credited as the first person to conceptualize and build a prototype of the integrated circuit.)

Intel 8085 processor

1976

Intel introduced the 8085 processor in March 1976.
Zilog released its first processor, the Z80, in July 1976. An 8-bit processor, the Z80 was primarily designed for embedded systems and used in many desktop computers.