Numérique et énergie : point de repère !

In this talk, we will explore the physical cost of computer calculation. Power, energy, orders of magnitude, Moore's law, semiconductors: all these concepts will be discussed and explained, through an overview of the advances in computing.

Thanks to these concepts, we will be able to retrace together, for young and older audiences, the incredible progress of electronic computing… as well as its limits. The question of the environmental impact of our uses, which has become crucial in the twenty-first century, will also be an important theme of this talk.

Depending on the audience's interest, the conclusion may take a more open-ended form: given the current state of science and technology, what choices are available to us for the computing of tomorrow? And how, at our own scale, can we shape that future?