4.Tecnology?

The first commercial launch of cellular telecoms was launched by NET in Tokyo Japan in 1979. In 1981 the NMT system was launched in Denmark, Finland, Norway and Sweden. The first handheld mobile phone in the US market was the [|Motorola_Dyna 8000X], which received approval in 1983. Mobile phones began to proliferate through the 1980s with the introduction of "cellular" phones based on cellular networks with multiple base stations located relatively close to each other, and protocols for the automated "handover" between two cells when a phone moved from one cell to the other. At this time analog transmission was in use in all systems. Mobile phones were somewhat larger than current ones, and at first, all were designed for permanent installation in vehicles (hence the term car phone). Soon, some of these bulky units were converted for use as "transportable" phones the size of a briefcase. Motorola introduced the first truly portable, hand held phone. These systems later became known as //first generation// (1G) mobile phones.



Some popular video games in the from the 70s to the 90s were Atati that was solded in1972. Another game councle was Sega Genesis that came out in 1990. The game system that blew all ofthe other game systems out of the water was Nintendo i nth US was Oct 18, 1985. The best-selling gaming console of its time, the NES ( **Nintendo Entertainment System)** helped revitalize the US video game industry following the video game crash of 1983, and set the standard for subsequent consoles in everything from game design to controller layout. In addition, with the NES, Nintendo introduced a now-standard business model of software licensing for third-party developers.