PDA phones
The history of PDA phones dates back to 1983, when Casio launched its PF-15115-36 and is propounded to be named such in 1992 by Apple. One of the world's best-selling PDA which spawned a category of phones called the smartphone was launched by Nokia in 1996 as 9000 communicator.
The devices that are abbreviated as PDA phones bears full form of Personal Digital Assistant. In simpler terms, it is also known as handheld computers or palmtop computer. PDA's of recent origin have colour screens and audio capabilities, enabling them to be used as mobile phones, web browsers and portable media players. Some recent gadgets of such type also come with touchscreen while others allow to access internet, intranet, extranet through Wireless WAN or WiFi.
A device is said to be PDA when it has a touch screen for entering data, a memory card slot for data storage and at least one of the following for connectivity: IrDA, Bluetooth and WiFi. Over a period of time, it has been noticed that many PDAs (typically those used primarily as telephones) may not have a touch screen, using softkeys, a directional pad and either the numeric keypad or a thumb keyboard for input. These days, Mobile phones that are available with virtual keyboard which helps to input by tapping letters on the screen, letter or word recognition which helps in writting on the touch screen and then "translated" to letters in the currently activated text field and stroke recognition in which a predefined set of strokes represents the various characters used in input. The user learns to draw these strokes on the screen or in an input area and the strokes are often simplified character shapes to make them easier for the device to recognize can be named as PDA. In recent scenario some business PDA also emerged which have full keyboards and scroll wheels or thumb wheels to facilitate data entry and navigation, in addition to supporting touch-screen input and also posses a full-size foldable keyboards available that plug directly, or use wireless technology to interface with the PDA and allow for normal typing. Not only this, some phones are now compatible with micro SD cards, which are physically much smaller than standard SD cards while many come with data connectivity through USB or wired cabling
The devices that are abbreviated as PDA phones bears full form of Personal Digital Assistant. In simpler terms, it is also known as handheld computers or palmtop computer. PDA's of recent origin have colour screens and audio capabilities, enabling them to be used as mobile phones, web browsers and portable media players. Some recent gadgets of such type also come with touchscreen while others allow to access internet, intranet, extranet through Wireless WAN or WiFi.
A device is said to be PDA when it has a touch screen for entering data, a memory card slot for data storage and at least one of the following for connectivity: IrDA, Bluetooth and WiFi. Over a period of time, it has been noticed that many PDAs (typically those used primarily as telephones) may not have a touch screen, using softkeys, a directional pad and either the numeric keypad or a thumb keyboard for input. These days, Mobile phones that are available with virtual keyboard which helps to input by tapping letters on the screen, letter or word recognition which helps in writting on the touch screen and then "translated" to letters in the currently activated text field and stroke recognition in which a predefined set of strokes represents the various characters used in input. The user learns to draw these strokes on the screen or in an input area and the strokes are often simplified character shapes to make them easier for the device to recognize can be named as PDA. In recent scenario some business PDA also emerged which have full keyboards and scroll wheels or thumb wheels to facilitate data entry and navigation, in addition to supporting touch-screen input and also posses a full-size foldable keyboards available that plug directly, or use wireless technology to interface with the PDA and allow for normal typing. Not only this, some phones are now compatible with micro SD cards, which are physically much smaller than standard SD cards while many come with data connectivity through USB or wired cabling