- A transistor is a device that controls current or voltage flow and serves as an electrical signal switch or gate. Three layers of a semiconductor material make up a transistor, each capable of carrying a current.
- Three scientists at Bell Laboratories devised the transistor in 1947, and it quickly supplanted the vacuum tube as an electronic signal regulator. A transistor controls current or voltage flow and serves as an electrical signal switch or gate. Three layers of semiconductor material make up a transistor, each capable of conducting current. A semiconductor, such as germanium or silicon, is a substance that conducts electricity in a 'semi-enthusiastic' manner.
- It's a hybrid of a true conductor like copper and an insulator (like the plastic wrapped around wires).
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