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First-generation of computers
The first-generation computers used vacuum tubes. They were very large, expensive, and required huge amounts of electricity.
The ENIAC was a first-generation computer. [https://www.tutorialspoint.com/computer_fundamentals/computer_first_generation.htm] -
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Second-generation computers
The second-generation computers used transistors instead of vacuum tubes. The computers became much smaller inside, they also became faster and cheaper. [https://www.tutorialspoint.com/computer_fundamentals/computer_second_generation.htm] -
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Third-generation computers
Integrated circuits were introduced during the development of the third-generation computers. Integrated circuits made computers faster, cheaper, and smaller that the second-generation computers. [https://www.tutorialspoint.com/computer_fundamentals/computer_third_generation.htm] -
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Fourth-generation computers
The fourth-generation computers use microprocessors. The fourth-generation computers are smaller, portable, and cheaper. They use less electricity and produce less heat. [https://www.tutorialspoint.com/computer_fundamentals/computer_fourth_generation.htm] -
Fifth-generation computers
The fifth-generation computers are the most advanced computers. Scientist are now trying to develop fifth-generation computers in a way that they can think on their own (Artificial Intelligence)
Robots work on this technology.