Electronics rose to prominence quickly in World War II. While prior to the war few electronic devices were seen as important pieces of equipment, by the middle of the war instruments such as radar and ASDIC (sonar) had become invaluable.ther Weapons commonly found During World War II include the American, Browning Automatic Rifle (BAR), M1 Carbine Rifle, as well as the Colt M1911 A-1; The Japanese Type 11 the Type 96 machine gun, and the Arisaka bolt-action rifles all were significant weapons used during the war.