Fundation of Electronics 3.0

Fundation of Electronics 3.0

1. Prior to 1900s several electric divices were in use including the electric motor thr electric lamp the telegraph and the telephone

   • Understanding this nature led to elctronics a branch of the study of electricity that deals with the behavior and motion of electrons in a vacuum or in special material
     • Vacuum Tubes- usually electricity requires a conductor such as a wire to travel from one place to another. In the 1850s however scientist discovereed that the elctricity can travel through a vacuum.
       • THE Crookes tube- Around 1878 the english physicist willim crookesdesigned a special type of vacuum tbe to stufy cathode rays
         • The Vacuum- Tube DIODE-While experimenting with a prototype incandescent lamp in 1875 Thomas Edison ran into a small problem
           • Semiconductors- The most promising aveneu of research centered on solid materials
             • Using Semiconductors - Scientist in the 1930s discovered that when an n-type semiconductor electrons can easily cross the boundary
               • Integrated Circuits-Although semiconductos diodes and transintors require much less space and powerthan the vacuum tubes they replaced
                 • Electronic Computers-although elecctronic devices such as televisions,radio,microwaves,ovens and radar are prevalent in society one of the farthestreaching
                   • Information in Computers-Although computers can be incredibly complex tey are all based on very simple electrical circuits

2. White Dove School Nombre -Roberto Josue Gallo Teacher- Terese Guevara Asignature-Science Grade-9 grade Date- 4-11-2019