Which invention replaced vacuum tubes and made computers much smaller and faster? 

The vacuum tubes were replaced by solid-state transistors, which made computers smaller, faster, reliable, and cheaper.

The transistors computer was called the second generation of computers. The vacuum tubes were used as the earliest digital electronic computer back from 1930 to 1940, while the vacuum was widely used from 1950 to 1960.

The vacuum was replaced by transistors, which are composed of semiconductors that are used in the manufacturing of smartphones, tablets, and also for making computers. A transistor is made of silicon and other semiconductor material; it serves as a device that magnifies its electrical output. It also serves as a building block for a computer circuit.

The transistors are no longer in use. They are now replaced by the third-generation computer, which is called the integrated circuit.

Transistor is the invention that replaced vacuum tube in a computer and made computer much smaller and faster. A transistor is often time made of silicon or some other semiconductor material. It serves as a device that magnifies its electrical input; it also serves as the building block of a computer circuitry.

A transistor is like a switch that conducts electricity when energized. A transistor computer is also called a “second generation computer”. It was widely used in the 1950s and 1960s. But now, integrated circuit also called “third generation computer” is commonly used.

The answer to this is the transistor. If you are still young, you may not be familiar with what a transistor is. This is a type of semiconductor device. This is meant to improve the electronic signals in order to make computers work faster.

When this first came out, a lot of people were ecstatic about it because this is something new. A lot of people say that this has to be one of the best inventions ever because it has made computers become more efficient. There are different inventors who are working on changing things more so that the transistor can be updated or also changed.