As with flared trousers in fashion, which come and go, it seems that in the history of technology the tendency to increase or decrease the size of certain devices has also experienced variations over time. But the compact has always had its status of achievement, because it is practical and perhaps because it is comfortable, and although mobile phones seem to never stop growing, computers and calculators had to be reduced with respect to the former, and there the key was the Like.
As in the case of calculation computers, we are not talking about an electronic device, but about what would still be one of the grandmothers of those calculators that we may have at home, already with buttons, a screen and perhaps solar power. We talk about something entirely mechanical, great-great-grandson of the abacuses and that after its creation there is quite a striking story.
