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Passage Two
The topic of this paragraph is personal digital assistants.
Personal digital assistants (PDAs) are small, hand-held electronic organizers that come in a range of prices and capabilities. These lightweight computers are usually operated with a stylus, a special "pen." The most basic, inexpensive PDAs have monochromatic screens. They can be used to organize and store contact information, such as names, phone numbers, and email addresses. More expensive models have color screens and offer computer-like applications. For example, you can manage email and create documents. In addition, they include a calendar function that allows you to keep track of appointments and events. They feature the ability to play video and audio files. The most expensive PDAs also offer a phone function, including text messaging.