PDA, Portable, Keyboard, Flash, Memory, Handheld, WiFi

The PDA Evolves

Soon after we introduced a computer that was small enough to fit on a desk top we started to think in smaller and smaller terms. We had a need for portability and reliability in the same unit. In 1983 Casio introduced the CASIO PF-3000 although the term PDA was not used until 1992 when Apple introduced the Apple Newton.

Data Entry Typically a PDA will do its data entry from a touch screen. The operator uses a stylus and taps the window to get operating menus. Data entry can be accomplished by a virtual keyboard on the screen. There are some PDAs that now have plug or wireless keyboards if the user does a lot of data entry.

Memory Like their larger desk top cousins, the PDA has seen an increasing need for more memory. Today most PDAs have memorycards lots that will accommodate both SD (Secure Digital) and/or CompactFlash slots. Use of these slots has grown from memory only to now being able to attach keyboards, video cameras, and barcode readers.

Connectivity PDAs have evolved from the early serial ports to USB connections until today PdAs today come with Bluetooth and WiFi connections. Some are used as both handheld computers and phones.

Data Sharing Few PDA users limit their computing to only a PDA. Most have one or more other platforms from which they do the majority of their work and limit the PDA to mobile operations only. Because of this a need developed to be able to synchronize the data between processors. PDAs come with a synchronization software that allows the PDA to extract data from Microsoft Outlook or similar programs. This insures that the user is always up to date and provides a back-up protection in case the PDA is lost or stolen.

Utilization How a PDA can be used is only as limited as the mind of the operator. Medical uses are prominent today in both diagnostics and patient records. Some patients are trained to use them to record changes in their symptoms. Instant transfer of data is available in this manner.

GPS systems are now found in PDAs. Maps and roadside information can easily be downloaded along with important or interesting sights to see. Many new cars are installing them as built in features into the dash. They not only provide GPS data to the drive but can relay important operating information in cases of emergency.