Windows 10 is the latest iteration of Microsoft's operating system. Desktops with Win 10 and previous versions are what most people typically use, so you'll be assured of the best compatibility and widest selection of third-party software. This also applies to browser plugins, since some only work with Windows. Apple's OS X is currently up to version 10.11 (El Capitan).
World War II (WWII), also called the Second World War, was a global war. It took place from 1939â1945. Most of the world's countries, including all the great powers, fought as part of two military alliances: the Allies and the Axis. The war was fought as a total war, meaning all resources a country had were used in the war, even those that didn't belong to the army, such as factories.
The war ended in 1945. World War 2 started in September 1, 1939 and ended in September 2, 1945. The United States did not become involved in WW2 till the year Sunday, December 7th, 1941. The conventional answer is 1939 (Germany's invasion of Poland) to 1945 (when the U.S. dropped the A-bomb on Japan). But actually, one could arge that the war began in 1937 with what is sometimes called the Sino-Japanese War...Japan's invasion of China, which became a part of World War II and continued throughout it into 1945.