In 1965 – Hughes Aircraft’s Early Bird launched into orbit. It was the first communications satellite to be placed in synchronous orbit and successfully demonstrated the concept of synchronous satellites for commercial communications.
In 1973 – NASA launched the Pioneer 11 spacecraft, the second mission to investigate Jupiter and the outer solar system and the first to explore the planet Saturn and its main rings.
In 1992 – Microsoft released Windows 3.1. It sold for $149 and added support for sound cards, MIDI, and CD Audio, Super VGA (800 x 600) monitors, and support for 9600 bps modems.