Meet the calculator Philips P252 with magnetic core memory and dot matrix printer (1970)

A very particular calculator with a dot matrix printer to print the results. It also has a magnetic core memory with toroids. It's also one of the first electronic calculators. It has an entire board to calculate the square roots. Not bad for a calculator. If you want some explanation of magnetic core memories, you can take a look at this video    • A Magnetic Amp and Core Memory   This video has multilingual audio; you can select your language's audio, not just subtitles. YouTube's audio translation isn't always perfect: YouTube doesn't currently understand names, context, or word spacing, but I think it's already pretty good. If something doesn't seem right, check the subtitles in your language. I'm Italian and speak English because YouTube only translates audio from English to other languages, not vice versa. In October 2025 the video has audio in 21 languages. Many other will follow: Video with audio in English, Italian, Korean, Japanese, French, Hindi ,Indonesian, Dutch, Polish, Portuguese, Spanish, German, Arabic, Bengali, Hebrew, Malayalam, Punjabi, Russian, Tamil, Telugu, Ukrainian.