A transistor is an element that amplifies electrical signals and controls the on/off of currents by electrical signals. Transistors are necessary parts for assembling logic circuits, and it is no ...

A transistor is a key component in electronics, often used as a switch or to amplify a signal from a sensor. NPN (negative-positive-negative) transistors are the most used transistor. An illustration ...

The first transistor was about half an inch high. That's mammoth by today's standards, when 7 million transistors can fit on a single computer chip. It was nevertheless an amazing piece of technology.

The ability to make a very miniature on/off switch changed the world. These tiny switches, known as transistors, make up the basis of all modern computing—they drive your cell phones, your bank ...