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The invention of electricity was in the 20th century. -
VACUUM TUBES -
Eniac
Computers with vacuum tubes.
Computers were very large, expensive, and very huge, amounts of electricity. -
TRANSISTORS -
They replaced vacuum tubes with transistors.
They were better as they were smaller, faster, and cheaper -
INTEGRATE CIRCUIT -
They replaced transistors with integrated circuits.
Were smaller, faster, and cheaper.
They also consumed less electricity and they made fewer mistakes. -
MICROPROCESSORS
The first computer portable -
They replaced integrated circuits with microprocessors.
Were smaller, portable, cheaper, and with thousands of circuits.
They consumed less electricity and less heat.
They had a small chip of silicon. -
The computer of the future -
Scientists are developing how they will think, and that they will have artificial intelligence.
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In the photo, we can see that as the years have gone by, the price of computers has been decreasing more and more people buy them.