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  2. Pushdown automaton - Wikipedia

    en.wikipedia.org/wiki/Pushdown_automaton

    In order to make a PDA as strong as a TM, we need to save somewhere the data lost through 'pop'. We can achieve this by introducing a second stack. In the TM model of PDA of last paragraph, this is equivalent to a TM with 3 tapes, where the first tape is the read-only input tape, and the 2nd and the 3rd tape are the 'push and pop' (stack) tapes.

  3. Personal digital assistant - Wikipedia

    en.wikipedia.org/wiki/Personal_digital_assistant

    The Palm TX. A personal digital assistant (PDA) is a multi-purpose mobile device which functions as a personal information manager. Following a boom in the 1990s and 2000s, PDAs were mostly displaced by the widespread adoption of more highly capable smartphones, in particular those based on iOS and Android in the late 2000s, and thus saw a rapid decline.

  4. Pilot 1000 - Wikipedia

    en.wikipedia.org/wiki/Pilot_1000

    The Pilot 1000 and Pilot 5000 are the first generations of PDAs produced by Palm Computing (then a subsidiary of U.S. Robotics).It was introduced in March 1996. The Pilot uses a Motorola 68328 processor at 16 MHz, and had 128 kB (Pilot 1000) or 512 kB (Pilot 5000) built in Random-access memory.

  5. Mobile computing - Wikipedia

    en.wikipedia.org/wiki/Mobile_computing

    A personal digital assistant (PDA) is a small, usually pocket-sized, computer with limited functionality. It is intended to supplement and to synchronize with a desktop computer, giving access to contacts, address book, notes, e-mail, and other features. A Palm TX PDA

  6. Category:Personal digital assistants - Wikipedia

    en.wikipedia.org/wiki/Category:Personal_digital...

    Personal digital assistants (PDAs) are handheld devices that were originally designed as personal organizers, but became much more versatile over the years. A basic PDA usually includes a clock, date book, address book, task list, memo pad and a simple calculator .

  7. Deterministic pushdown automaton - Wikipedia

    en.wikipedia.org/wiki/Deterministic_pushdown...

    A (not necessarily deterministic) PDA can be defined as a 7-tuple: = (,,,,,) where is a finite set of states; is a finite set of input symbols; is a finite set of stack symbols

  8. What Is "Power PDA"? Meet the Steamy Fall Dating Trend ... - AOL

    www.aol.com/lifestyle/power-pda-meet-steamy-fall...

    You’ve seen them—and their hands—everywhere: Kourtney Kardashian and Travis Barker (aka ‘Kravis’). From watching the couple fondle each other at family get-togethers to tongue-touching ...

  9. Pocket PC - Wikipedia

    en.wikipedia.org/wiki/Pocket_PC

    A Pocket PC (P/PC, PPC) is a class of personal digital assistant (PDA) that runs the Windows Mobile operating system, which is based on Windows CE/Windows Embedded Compact, and that has some of the abilities of modern desktop PCs. The name was introduced by Microsoft in 2000 as a rebranding of the Palm-size PC category and was marketed until 2007.