In 1971, while he was working with Boeing in Huntsville, Alabama, Paraskevakos demonstrated a transmitter and receiver that provided additional ways to communicate with remote equipment, however it did not yet have general purpose PDA applications in a wireless device typical of smartphones.

In the third quarter of 2012, one billion smartphones were in use worldwide.Devices that combined telephony and computing were first conceptualized by Nikola Tesla in 1909 and Theodore Paraskevakos in 1971 and patented in 1974, and were offered for sale beginning in 1993.Paraskevakos was the first to introduce the concepts of intelligence, data processing and visual display screens into telephones.First, a word on what to expect 4K TVs are hurtling towards HDTV-level prices at incredible speed and content production in ultra HD is accelerating as well.New UHD content started off more slowly than the television technology that supports it but now the creation of new shows, movies and other programming in 4K resolution is moving along much faster, particularly in 2016.