Explanatory Question
What is a hand-held computer?
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A hand-held computer, also called ‘personal digital assistant’ (‘PDA’), is a portable computer that can conveniently be stored in a pocket (of sufficient size) and used while the user is holding it. PDAs are essentially small portable computers and are slightly bigger than the common calculators. A PDA user generally uses a pen or electronic stylus, instead of a keyboard for input. The monitor is very small and is the only apparent form of output. Since these computers can be easily fitted on the top of the palm, they are also known as ‘palmtop’ computers. Hand-held computers usually have no disk drive rather they use small cards to store programs and data. However, they can be connected to a printer or a disk drive to generate output or store data. They have limited memory and are less powerful as com-pared to desktop computers. Some examples of hand-held computers are Apple Newton, Casio Cassiopeia and Franklin eBook Man.
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