The complicated divisions and multiplications of the Olivetti Divisumma 14
The Olivetti Divisumma 14 was the first mechanical calculator with the printer in the world capable of performing the four operations and managing negative results. This doesn't mean the calculation was made in the same manner like today. The audio of the video is automatically translated by YouTube into 21 languages. My original voice is in the Italian and English version. YouTube's translation usually works pretty well, but YouTube struggles to understand names and context, so there may be occasional errors. However, the subtitles are very accurate. If you want to download the documents I show in this video, this is the link to my website. Here you find also other documents. I just started uploading all my documents, it will take a lot of time. But it's free! https://oldtypewriters.net
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