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A smart phone is a mobile phone offering advanced capabilities beyond a typical mobile phone, often with PC-like functionality. There is no industry standard definition of a smart phone. For some, a smart phone is a phone that runs complete operating system software providing a standardized interface and platform for application developers. For others, a smart phone is simply a phone with advanced features like e-mail and Internet capabilities, and/or a full keyboard.
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THIS IS SOME HISTORY ABOUT SMART PHONE.
The first smart phone was called SIMON designed by IBM in 1992 and shown as a concept product that year at codex, the computer industry trade show held in Last Vegas. It was released to the public in 1993. Besides being a mobile phone, it also contained a calendar, world clock, calculator, note pad, e-mail, send and receive fax, and games. It had no physical buttons to dial with. Instead customers used a touch-screen to select phone numbers with a finger. Text was entered with a unique on-screen "predictive" keyboard. By today's standards, the Simon would be a fairly low-end smart phone.
The sony Erickson R380 was sold as a 'smart phone' but could not run native third-party applications. Although the NOKIA 9210 was arguably the first true smart phone with an open operating system, Nokia continued to refer to it as a Communicator.
In 2001 RIM released the first BLACK BERRY which was the first smart phone optimized for wireless email use and has achieved a total customer base of 8 million subscribers by June 2007, of which three quarters are in North America.
PDA'S HISTORY.
The first PDA is considered to be the CASIO PF-3000 released in May 1983. GO CORP. was also pioneering in the field. The term was first used on 7 January 1992 in Last Vegas, Nevada, referring to the apple newton. PDAs are sometimes referred to as "Palms", "Palm Pilot", or "Palm Tops".