personal digital assistant


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personal digital assistant

(PDA), lightweight, hand-held computercomputer,
device capable of performing a series of arithmetic or logical operations. A computer is distinguished from a calculating machine, such as an electronic calculator, by being able to store a computer program (so that it can repeat its operations and make logical
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 designed for use as a personal organizer with communications capabilities; also called a handheld. A typical PDA has no keyboard, relying instead on special hardware and pen-based computerpen-based computer,
computer that uses software to enable it to accept handwriting or drawing as a form of input. A stylus, which may contain special electronic circuitry, may be used to write on the computer display or on a separate tablet.
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 software to enable the recognition of handwritten input, which is entered on the surface of a liquid crystalliquid crystal,
liquid whose component particles, atoms or molecules, tend to arrange themselves with a degree of order far exceeding that found in ordinary liquids and approaching that of solid crystals.
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 display screen. In addition to including such applications as a word processor, spreadsheet, calendar, and address book, PDAs are used as notepads, appointment schedulers, and wireless communicators for sending and receiving data, faxes, and electronic-mail messages. Introduced in 1993, PDAs achieved only modest acceptance during the remainder of the decade due to their relatively high price and limited applications, but improved software and lower prices subsequently led to more widespread use. In the early 21st cent., however, smartphones (see cellular telephonecellular telephone
or cellular radio,
telecommunications system in which a portable or mobile radio transmitter and receiver, or "cellphone," is linked via microwave radio frequencies to base transmitter and receiver stations that connect the user to a conventional
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) equipped with a wide range of applications supplanted PDAs. See also palmtoppalmtop
or hand-held personal computer,
lightweight, small, battery-powered, general-purpose programmable computer. It typically had a miniaturized full-function, typewriterlike keyboard for input and a small, full color, liquid-crystal display for output.
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.

personal digital assistant

[‚pərs·ən·əl ‚dij·əd·əl ə′sis·tənt]
(computer science)

Personal Digital Assistant

(computer)
(PDA) A small hand-held computer typically providing calendar, contacts, and note-taking applications but may include other applications, for example a web browser and media player. Small keyboards and pen-based input systems are most commonly used for user input.

The Apple Newton was a fairly early example.

References in periodicals archive ?
a recognized pioneer and innovator in the information industry, creates powerful solutions based on easy to use personal computers, servers, peripherals, software, online services, and personal digital assistants.
The convergence of sophisticated digital technologies, from wireless personal digital assistants and cellular fax/phones to set-top boxes and interactive TV, is creating a critical need for low-cost, high-performance computational power embedded in these devices to control them," said Hyung Lae Roh, director of Samsung's Micro Component Business Group.
ATLANTA -- Personal Digital Assistant for the Blind and Visually Impaired Built Using Visuaide Assistive Technology and The HP iPAQ Pocket PC as a Platform
Study Studio offers students the convenience and mobility of a personal digital assistant for anytime, anywhere access," said JP Lenney, president of McGraw-Hill/Irwin, a unit of McGraw-Hill Higher Education.
During the demo, someone wearing a standard heart rate monitor chest strap was given a radio frequency relay device (about the size of a pack of chewing gum) and a personal digital assistant with special IBM software.
From cell phones and global-positioning systems to BlackBerry devices and personal digital assistants, mobile technologies not only are creating a real-time service to help companies increase efficiencies, but also are strengthening customer satisfaction and reducing costs.
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