They generally function as electronic organizers and typically run fewer applications than handheld PCs. Typically, the more MHz, the faster your device. RAM Random Access Memory. The more memory it has, the more information it can hold. Expansion slots and internal upgrades often are available.
Higher resolution translates into sharper images.
Serial Standard connection that permits synchronization beween a PDA and a desktop computer. Devices that come with a serial connection usually have optional docking stations too. Touch Screen A display that is sensitive to the touch of a finger or stylus. The panel covering the display's surface translates touch-pressure into workable data. Voice Recorder Built-in microphone that lets you record voice messages.