PDA’ are small hand help devices that are widely used for simple personal and business use, often primarily for storage and retrieval of notes, schedules and address book and other such data.
Older PDA’s contained a small keyboard that was cumbersome.
A stylus or a small pen that can be used to jot down notes and other appointments replaced the keyboard. And since all modern PDA’s have hand writing recognition capabilities and the task of storing data becomes simple.
Modern PDA’s are also used to connect to the Internet for checking the E-mail and other simple tasks.