Come Alive With The Touch Of Screen
Portable Digital Assistants (PDAs) are adopting touchscreen technology to make it easier to operate the device. These have become immensely popular. A touchscreen detects a touch within its display area. The touch may be that of a finger or hand directly or through an intermediary as a stylus. This makes the touchscreen as an interface to interact with the device through the touchscreen. The interaction is with what is indicated or displayed at the point of touch. It is a substitute of what otherwise was managed directly by a mouse or a touchpad. Touchscreen actually does not even need an intermediary as a stylus. The origin of touchscreen was in the 1960s and in 1972 it was used in a computer assisted learning terminal. The HP-150 was one of the earliest commercial touchscreen computer launched in 1983. Multipoint touchscreen has since been developed to facilitate touch by more than one finger on the screen. It is now possible for multiple users to interact with the touchscreen at the same time.
Touchscreen has come to be extensively used in kiosk systems which are established for a variety of purpose such as in retail stores, tourist settings, ATMs, airports and train stations besides others. Touchscreen displays are widely in use and are found in automobiles, gaming consoles, airplanes, appliances, machine control systems and hand display devices of many kinds. It is used extensively in industries and room automation. Mobile phones too have introduced touchscreen technology as the iPhone and Nintendo DS. Touchscreen has become popular in smartphones, PDAs, portable game consoles and many of the information appliances.
The market place for PDAs has become exciting with newer designs and features. The manufacturers too are indulging the customers with sleek and compact models. Some of the PDAs are the PalmOne M515, Palm Z22, Palm TX, HP iPAQ 111 Classic Handheld, Pharos 535e Traveler, Palm Tungsten E2 Handheld, Palm TX Handheld, and Nokia N810 Portable Internet Tablet.
PDAs have demonstrated their potential for absorbing newer technologies and extending its functionality. Expanding markets and technological advancement have brought the cost of PDAs down. PDAs have become more user-friendly that it can be operated by those who do not have much computer knowledge.
Because of technology, bigger things are getting smaller and almost everything is getting close at hand. Instead of just grabbing anything you see in stores, always make the right choice when you buy technological gadgets.
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