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

(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 ?
Sharp said it decided to move up the schedule in view of growing orders for the new products, called system LCD panels and used in mobile phones and personal data assistants.
Personal data assistants running Windows CE can create special folders whose contents are encoded on the fly with the RC5 and RC6 algorithms.
Personal Data Assistants, or PDAs, come in all shapes, sizes, colors and, of course, prices.
Journalists training in Newsplex will work with the latest gadgets - laptops, personal data assistants, digital video cameras and recorders and notepads that transform handwritten notes to digital files.
The second section discusses implementation of mobile-wireless technology in schools, providing examples from Latrobe Junior High School, where wireless laptops were issued to students and River Hill High School, where personal data assistants (PDAs) were issued to students.
com from Personal Data Assistants (PDAs), but can also book a vehicle from Internet- ready cell phones and pocket PCs.
The deals struck in Asia nowadays are for third generation networks, so called WAP systems (wireless application protocol) that allow content to be transmitted to cell phones and personal data assistants.
Mobile computing will expand with Web- enabled pagers, cell phones, personal data assistants and high-tech car dashboards.
A new report from IGI Consulting, "Wireless Web Wonders," predicts that smart phones and personal data assistants (PDA) will dominate the wireless Internet market.

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