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were used as electronic switches and amplifiers for early computers -
The first generation was characterised by the use of vaccum tubes of their central processing units.
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They were used to amplify signals and control the flow of electrical current -
The second generation of computers, represented a significant advanced by replacing bulky vaccum tubes with smaller, faster, and more reliable transitors. This change resulted in more powerful and efficient machines that consumed less electricity.
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The third generation was characterised by the adoption of integrated circuits, which replaced transistors and enabled computers to become much faster, smaller, more reliable and more affordable
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Which began in the early 1970s, introduced microprocessors and very large-scale integration, enabling the crceation of personal and home computers
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The fifth generation of computers, characterised by artificial intelligence, continues to evolve with a focus on machines that can learn, reason and interact with humans in a natural way