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Smartphones can do more and more things. Fifteen years ago, they could not store movies. Computer chip technology has advanced quickly. We can now stream movies, store huge amounts of data and play amazing games. IBM announced a breakthrough. Its new chips have 45 per cent better performance and use 75 per cent less energy. This is good for the environment. Mobile phone battery life will improve. We will only need four days to charge phones.
IBM has reduced the size of chips. Computer engineers measure them in nanometres. One nanometre is a billionth of a metre. IBM's new chip is just 2nm. A computer expert said: "We have seen semiconductor manufacturers moving from 14nm to 7nm." He said IBM's new chip could make artificial intelligence better. The chips could also let data centres store more information. However, data centres use one per cent of the world's electricity.
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