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  Germanium
Germanium is another semiconductor found in group 14 of the periodic table. It is grey white with a shimmering white luster. In the 1950s germanium was the semiconducting material preferably used in the transistor. It is however, not as abundant as silicon and is therefore rarely used today.		  
     
 
Cisco
The Transistor is presented with the support of Cisco Systems, Internet infrastructure partner.
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