Technological Timeline By Taco_Bell_Sunshine Jul 1, 1979 Walkman TPS-L2 Worlds first low-cost personal stereo. Created by Sony cofounder Masaru Ibuku and executive deputy president Norio Ohga. Nov 1, 1979 LCD-based Microvision First ever hand-held gaming console with interchangeable cartridges. Designed by Jay Smith, the engineer who would later design the Vectrex gaming console Sep 21, 1983 DynaTac 8000x First ever portable cellular communication device that could make long distance calls and did not need a cord to function. Created by Martin Cooper. Apr 21, 1989 Game Boy Nintendo introduces their first of many handheld gaming systems. Design team headed by Gunpei Yokoi. Aug 16, 1994 IBM Simon Personal Communicator Thought of as the world's first smartphone made by IBM. It paved the way for smartphones as we know them now.