Upasana Education Trust - 𝐈𝐍𝐕𝐄𝐍𝐓𝐎𝐑 𝐎𝐅 𝐅𝐈𝐑𝐒𝐓 𝐂𝐀𝐋𝐂𝐔𝐋𝐀𝐓𝐎𝐑 (𝐁𝐥𝐚𝐢𝐬𝐞 𝐏𝐚𝐬𝐜𝐚𝐥) HE was a French mathematician invented the first adding machine in 1642 #calculator # invented #generalknowledge #iq #gk #test #question #best ...
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Inventor of the calculator dies at the age of 86
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