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.

1. History and flow:1940-45 By ciaran lydon Per.5

9. The first handheld two-way radio or “handy talkie” made by Motorola in 1940

10. The Z3,built in 1941, was the first fully operational calculating machine

13. Harvard-IBM MARK I was a large program controlled machine that did vital calculations for the U.S. navy 1944

14. This is one of the first electronic computers to use binary the Electronic Discrete Variable Automatic Computer