Most PDAs now come equipped with an expansion slot. Each slot accommodates a different type of expansion card. The most common types are listed below.

Secure Digital (SD): SD cards include features that allow for the secure exchange of data. This is particularly important for users who rely on their PDAs for business or banking applications. SD cards are the preferred form of expandable storage for Palm products and many digital cameras. Sony's proprietary Memory Stick™ is also a form of SD media expansion.

Compact Flash (CF): Compact Flash memory was the first flash memory standard. Used in a variety of PDAs and digital cameras, Compact Flash also supports a number of popular handheld GPS applications.

MultiMediaCard (MMC): MMCs allow your PDA to accommodate a variety of programs. However, since they don't provide the security of an SD card, the applications are usually limited to games and utilities software such as maps and street finders.

Some PDAs offer dual expansion slots, meaning that they can accommodate more than one kind of memory card.

With the proper combination of accessories, expansion cards and software, you can create your own digital pictures and videos directly from your PDA. Like mobile phones, many PDAs now come equipped with built-in digital cameras.

The software available for PDAs used to be limited to the basics-word processing, spreadsheets, etc. But you can now find a wide selection of video games, financial programs, books and mapping software that can be plugged directly into your PDA for the ultimate mobile experience.

Ever since laptops and PDAs have moved the computer culture away from the desk, companies have sought ways to make these devices even more versatile. The next step in total independence is the world of wireless solutions.

Many PDAs have now integrated wireless technologies such as WiFi (used for internet connections) or Bluetooth® (used to connect two Bluetooth-enabled devices). With the proper combination of wireless solutions, you can quickly and easily send information from PDA to PDA, from PDA to computer, or access the Internet from virtually anywhere.

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