-
Mechanical devices
The first mechanical device was made probably made in caveman times because stone tools are just simple devices -
Period: to
The history of computer technology
Sources:Dayton university website -
electro mechanical devices
The first electro mechanical device is the relay made in 1835 by Joseph Henry -
The first generation of computers
At the beginning of the computer cycle computers were only used for military purposes -
The second generation of computers
The transistor was able to replace the vacuum tubes radios and TVs that the first generation had -
The third generation of computers
The second gen transistors were replaced with micro chips that allowed components of the computer into that chip -
The fourth generation of computers
After the creation of the microchip all they focused on was reducing the size