Context: A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits.

Question: What is the use of a transistor?
Answer: to amplify or switch electronic signals and electrical power

Question: What is a transistor made of?
Answer: semiconductor material

Question: What is the minimum amount of external connection terminals to call an item a transistor?
Answer: three

Question: Why does a transistor increase a signal?
Answer: the controlled (output) power can be higher than the controlling (input) power

Question: Where are most transistors found?
Answer: embedded in integrated circuits

Question: What is an integrated circuit used for?
Answer: Unanswerable

Question: Where are most semiconductor devices found?
Answer: Unanswerable

Question: What are integrated circuits made of?
Answer: Unanswerable

Question: How many transistors are embedded in most integrated circuits?
Answer: Unanswerable

Question: What controls how strong a signal is?
Answer: Unanswerable