In summary, smart phone is a kind of device, which can let you make calls and increase other functions. You may find that it is a personal digital assistant or a computer – for example, such as sending and receiving e-mail or editing Office documents.
But if you want to really understand what smart phone is, we should talk about from its history. At first, there were cell phones and personal digital assistants (or PDA). Cell Phone was used to call – it not had a lot of other functions; but PDA products, such as PalmPilot, were used as a personal, portable organizer. They can store your contact information and to-do list, and also can synchronize with your computer.
Finally, PDA products got wireless connection, and can send and receive e-mails. Cell Phone, at the same time, also had the ability to get information. Then the PDA products had mobile phone functions, and cell phone increased more functions like PDA (or even computers, etc.), the result is smart phone.
The Smart phones’ operating systems:
Symbian’s representative brand: Nokia
SmartPhone’s representative brand: Dopod
PPC’s representative brand: Dopod, Cool, ASUS
Linux’s representative brand: Motorola (some models)
Palm’s representative brand: Palm
Mac OS’s representative brand: Iphone
Android’s representative brand: HTC G1
BlackBerry OS’s representative brand: BlackBerry
WinCE’s representative brand: Meizu, Amoi (some models)