Mobile computing allows people to use it without being tied to a single location Mobile computing can improve the service you offer your customers. For example, when meeting with customers you could access your customer relationship management system - over the internet - allowing you to update customer details.
Addition to telephony, modern mobile phones also support a wide variety of other services such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, gaming and photography. Mobile phones that offer these and more general computing capabilities are referred to as smart phones.
The first mobile telephone call made from a car occurred in St. Louis, Missouri, USA on June 17, 1946, phones were composed of vacuum tubes and relays, and had a weight of 40 kg
The world's first commercial automated cellular network was launched in Japan by NTT in 1979
In 1991, the second generation (2G) cellular technology was launched in Finland by Radiolinja on the GSM standard
In 2001, the third generation (3G) was launched in Japan by NTT DoCoMo on the WCDMA standard
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