Hong Kong judge credited to have made Sudoku popular around the world. The puzzle was created by Howard Garns, an American architect, and published originally with the name Number Place in Dell Pencil Puzzles and Word Games (May 1979 issue).
Number Place then crossed the seven seas, as it were, and got published in the Nikoli magazine in Japan. It now received a good bit of success. However, creating the puzzles was a tedious process, and this is where Wayne Gould steps in.
Gould spent six years developing a computer program that would automatically create puzzles of specified difficulty. He then convinced The Times in UK to publish the first Sudoku puzzle. From there, it was picked up by newspapers in the United States and quickly became a worldwide sensation.
Credit for creating the modern computer mouse with an optical encoder, single ball and two buttons goes to Jean-Daniel Nicoud of the Ecole Polytechnique Federale de Lausanne in Switzerland. This was a major improvement over original computer mouse created by Douglas Engelbart. Jean-Daniel Nicoud was assisted by André Guignard during the design process. The "Guignard mouse" was ready in 1977 and picked up by Logitech who saw the potential in the device. In 1980s, they started to get the computer peripheral manufactured from another Swiss company, Dubois Depraz SA. With the proliferation of GUI-based operating systems, the mouse soon became extremely popular. By the end of 2008, Logitech announced that they had sold 1 billion of these. [more...]