Computer chip technology has advanced a lot. Smartphones can now stream movies, store lots of data and play amazing games. IBM has made a new chip with amazing performance. It uses 75 per cent less energy. This is good for the environment. Soon, we will only need four days to charge our phones.

IBM cut the size of its chips. Computer engineers measure chips in nanometres. One nanometre is a billionth of a metre. IBM's new chip is 2nm. A computer expert said IBM's new chip could make artificial intelligence better. It could also let data centres store more information. However, data centres use lots of electricity.