The US Patent Office Issues a Patent for the Spalding Adding Machine On January 13, 1874 The US Patent Office issues a patent for the Spalding Adding Machine. The precursor of calculators and computers, mechanical adding machines could do simple…
Category: Fun Facts
History of computing
Researchers Discover Two Major Flaws in the World’s Computers On January 3, 2018 computer security experts have discovered two major security flaws in the microprocessors inside nearly all of the world’s computers.The two problems, called Meltdown and Spectre, could allow…
History of computing
Katherine JohnsonOn February 24, 2020 died Katherine Johnson. She was an American mathematician whose calculations of orbital mechanics as a NASA employee were critical to the success of the first and subsequent U.S. crewed spaceflights. During her 35-year career at…
