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The first generation computers were very large, expensive, and required huge acounts of electricity.
A vacum tube consist of a glass bulb and wire. The wire is use to carry data in the form of electronic signals.
The ENIAC was a first generation of computer. -
The second generation computers used transistors instead of vacum tubes.
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Integrated circuits made computers faster, cheaper and smaller than the second generation computers.
An integrated circuit (IC) is as small as a transistor but it can work as fast as thousands of them. -
the fourth generation computers are smaller, portable and cheaper. They use less electricy and produce less heat.
The fourt generation computers use microprocessors. A microprocessor consists of a small silicon chip on which thousands of circuits are placed. -
The fifth generation computers are the most advanced computers.
Scientists are now triying to develop fifth generation computers in a way that they can twink on their own. This is called artificial inteligence (AI). Robots work on this tecnology.
Supercomputers are the most complex computers. They are used by people who need to process complex and large amounts of data.