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 ?
We then sketch the gender ideology underlying these rifts in the PDA case law.
The Armor 2600 PDA case has undergone stringent physical testing, and has even met military specifications in key categories.
A third theme evident in the PDA case law, and shared by discrimination law generally, is that "discrimination" is equated with a conscious intent to disadvantage the protected group.
Proceeds from this event and the sale of the special PDA case will benefit 4Sho4Kids, a nonprofit foundation, which is dedicated to improving the quality of life for children born with developmental disabilities and children born, addicted to drugs.
Q-Pad is built into an executive style leather flip case about the size of an ordinary PDA case.
Among those products selected for the Holiday Catalog are Cross' innovative and highly successful Morph(TM), Ion(TM), and MicroPen products and Gemline's popular Techfolio, Microfiber Padfolio, and Leather PDA Case.
Its Peel-It(TM) wrist-wearable PDA case received the 1998 Editor's Choice Award from PalmPower.
Breaking away from traditional PDA case design, Kensington introduced today its PDA Protector, a convenient and innovative PDA case specifically designed to combine one-handed ease of use convenience with comfort and style.
The company's patented Peel-It(R) PDA case turns a typical handheld computer, such as a Palm V, Hewlett-Packard Jornado Pocket PC, Compaq iPAQ, Casio Cassiopeia, IBM WorkPad, or Handspring Visor, into a hands-free computer for under $50.
Orang-Otang makes the Peel-It(TM) wearable PDA case, which allows a 3Com Palm Pilot, Philips Nino, Symbol SPT-1500 or similar handheld device to be worn on one's wrist for total hands-free mobility and convenience.
Orang-Otang makes the Peel-It(TM) wearable PDA case, which allows a 3Com Palm Pilot, Philips Nino, Symbol SPT-1500 bar-code scanner or similar handheld device to be worn on a user's wrist for total hands-free mobility and convenience.
14 /PRNewswire/ -- On the heels of its successful September launch of the "Banana Peel(TM)" wearable PDA case, Orang-Otang(TM) Computers, Inc.