Brief History of Electronics:

 Electronics actual history began with the invention of vacuum tubes.

Subsequently, the use of germanium and silicon semiconductor materials starts the development of semiconductor devices. 

The bulky vacuum tube which consumed high power for its operations are replaced by this semiconductor devices. 

After a semiconductor devices introduction the IC fabrication leads the electronics field because of IC fabrication technology, the electronics products becomes compact. 

To understand the history of electronics; please click the link below 

 https://www.youtube.com/watch?v=WsdVCCJsyfU