Explain Palmtop Computers

• A Personal Digital Assistant (PDA) is a handheld microcomputer that trades off power for small size and greater portability. 
• They typically use a touch-sensitive LCD screen for both output and input (the user draws characters and presses icons on the screen with a stylus). 
• PDAs communicate with desktop computers and with each other either by cable connection, infrared (IR) beam, or radio waves. 
• PDAs are normally used to keep track of appointment calendars, to-do lists, address books, and for taking notes.
• A palmtop or handheld PC is a very small microcomputer that also sacrifices power for small size and portability. 
• These devices typically look more like a tiny laptop than a PDA, with a flip-up screen and small keyboard. 
• They may use Windows CE or similar operating system for handheld devices.
• Some PDAs and palmtops contain wireless networking or cell phone devices so that users can check e-mail or surf the web on the move.