what are the alternatives to silicon chip?
I think you need to be more specific ... "alternative" for what?
There are lots of semiconducting materials.
There are ways to build electric circuits without using semiconductors too.
What are the ways to build electric circuits without using semiconductors? thx
Use vacuum tubes.
Before semiconductors, the same roles were played by thermionic valves: vacuum tubes.
Non-semiconducting circuit elements are "conductors", "resistors", and insulators.
Clever arrangements of conductors and resistors can be made to do all kinds of clever things.
Thermionic valves, for example, use many different conductors and resistors and insulators together to achieve their effects.
Like I said - you need to be specific.
Another alternative is to use brain matter.
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