4. PDA – PDA stands for personal digital assistant, but this small bulky device was commonly known as a handheld PC, or Palm – after the major manufacturer. Many PDAs had touchscreens with WIFI connections, GPS antennas, had internal applications for word processing, calendar, email, web browser, and even the ability to install new apps. […]
#4. Castle Bravo (Château Bravo), March 1, 1954 Château Bravo, a dry fuel atomic hydrogen bomb, was the most effective atomic gadget ever exploded by the United States (15 megatons) Loading…
