A handheld computer
• A handheld computer is a computer that can conveniently be
stored in a pocket (of sufficient size) and used while you're holding
it. Today's handheld computers, which are also called personal
digital assistants (PDAs), can be divided into those that accept
handwriting as input and those with small keyboards. The original
handheld that accepted handwriting was Apple's Newton, which
was later withdrawn from the market. Today, the most popular
handheld that accepts handwritten input is the PalmPilot from
3Com. Philips, Casio, NEC, Compaq, and other companies make
handhelds with small keyboards.