The document discusses the history and development of computers from 1940-1945. It describes some of the earliest computers and technologies developed during this time period including the first handheld two-way radio invented by Motorola in 1940, the Z3 computer built in 1941, and the Electronic Numerical Integrator and Computer (ENIAC) built in 1943, considered the first general-purpose electronic computer. It also mentions the development of the first portable FM two-way radio, the Harvard Mark I computer used by the U.S. Navy in 1944, and the coining of the term "bug" when Grace Hopper found an actual insect disrupting the Mark II computer.