A Personal Data Assistant has many functions. You can use them to make Microsoft compatible documents and spreadsheets, play music, play games, use timers and stopwatches, make a calender and much...
Prices will vary by retailer and older devices tend to be less expensive than the newest ones. Choices would include the varieties of the Palm One, for Smart Phone like capabilities, and Franklin's...
"PDA hand helds are a good value if you are a business person. If not, you might do better with a smart phone or even an android. PDA's are mainly used to business."
"One of the best, newest and most popular PDA Handheld on the market right now is the new iPad 2 from Apple/Mac. This is everything you want to do on your computer in a handheld device."