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  2. 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.

  3. Lithium polymer battery - Wikipedia

    en.wikipedia.org/wiki/Lithium_polymer_battery

    These batteries provide higher specific energy than other lithium battery types. They are used in applications where weight is critical, such as mobile devices, radio-controlled aircraft, and some electric vehicles. [2] They are widely used in laptop computers, tablets, and smartphones.

  4. Smartphone - Wikipedia

    en.wikipedia.org/wiki/Smartphone

    The PDA provided e-mail; calendar, address book, calculator and notebook applications; text-based Web browsing; and could send and receive faxes. When closed, the device could be used as a digital cellular telephone. In June 1999, Qualcomm released the "pdQ Smartphone", a CDMA digital PCS smartphone with an integrated Palm PDA and Internet ...

  5. Mobile computing - Wikipedia

    en.wikipedia.org/wiki/Mobile_computing

    A Palm TX PDA; An ultra mobile PC is a full-featured, PDA-sized computer running a general-purpose operating system. Phones, tablets: a slate tablet is shaped like a paper notebook. Smartphones are the same devices as tablets, however, the only difference with smartphones is that they are much smaller and pocketable.

  6. Comparison of commercial battery types - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_commercial...

    Under certain conditions, some battery chemistries are at risk of thermal runaway, leading to cell rupture or combustion.As thermal runaway is determined not only by cell chemistry but also cell size, cell design and charge, only the worst-case values are reflected here.

  7. Lithium–silicon battery - Wikipedia

    en.wikipedia.org/wiki/Lithium–silicon_battery

    Lithium–silicon batteries are lithium-ion batteries that employ a silicon-based anode, and lithium ions as the charge carriers. [1] Silicon based materials, generally, have a much larger specific capacity, for example, 3600 mAh/g for pristine silicon. [ 2 ]

  8. Lithium-ion battery - Wikipedia

    en.wikipedia.org/wiki/Lithium-ion_battery

    A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li + ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries, Li-ion batteries are characterized by higher specific energy, higher energy density, higher energy efficiency, a longer cycle life, and a longer calendar life.

  9. Comparison of HTC devices - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_HTC_devices

    HTC logo HTC's first product: Kangaroo Palm-size PC. HTC is the original design manufacturer for many Android and Windows Phone-based smartphones and PDAs.Brands that have marketed or previously marketed HTC-manufactured products include Dell, Fujitsu Siemens, HP/Compaq, i-mate, Krome, O 2, Palm, Sharp Corporation, and UTStarcom.