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ion

(1) (IDL On the Net) See IDL. (2) (Ion) An NVIDIA platform that features the NVIDIA GeForce 9400M display adapter in netbooks that use Intel's Atom processors. (3) An atom with fewer or...

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Definition: ion

(1) (IDL On the Net) See IDL.

(2) (Ion) An NVIDIA platform that features the NVIDIA GeForce 9400M display adapter in netbooks that use Intel's Atom processors.

(3) An atom with fewer or greater electrons than normal as a result of a chemical reaction in the material. A positive ion, called a "cation" (pronounced "cat-eye-en"), is an atom that has one or more electrons stripped out, which means it has fewer electrons in its electron shells than it has protons in its nucleus. A negative ion, called an "anion" (pronounced "an-eye-en") is an atom that has one or more electrons forcibly added.

Batteries Contain Positive and Negative Ions
In a battery, there are positive ions on one side and negative ions on the other. When a conductor is placed in between to complete the circuit, the electrons flow from the negative ions to the positive side where they join the positive ions. See ion deposition.



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    Image galleries | March 30, 2012 5:00pm PDT

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    Image galleries | January 10, 2012 4:00pm PST

  • Proton transistors to bridge machines and living things

    Materials scientists at the University of Washington have built a novel transistor that uses protons, creating a key piece for devices that can communicate directly with living things.

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  • Nvidia introduces new ION chip for netbooks

    The name is the same, and ION still serves the same purpose--giving under-powered netbooks a jolt of performance for 3D gaming and HD video. But the new version, which Nvidia introduced at the...

    Blog posts | March 2, 2010 8:22pm PST

  • Holiday Gift Guide 2009: Netbook computers

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    Blog posts | November 1, 2009 9:07pm PST

  • Adobe and Nvidia bring GPU computing to the masses

    Adobe and Nvidia announced that the next version of the Flash player will take advantage of Nvidia graphics processing units (GPUs) to improve online video. Adobe Flash Player 10.1, which will be...

    Blog posts | October 5, 2009 7:20pm PDT

  • Netbooks with Nvidia's Ion wait on Windows 7

    Nvidia's Ion platform may be off to a slow start, but that could change once Windows 7 arrives in late October. To date Ion has been used only in nettops--including two new ones from Asus and...

    Blog posts | August 21, 2009 1:31pm PDT

  • Lenovo IdeaPad S12 pushes netbooks in new directions; Intel, Microsoft push back

    The battle over the role of netbooks appears to be escalating. Computer makers, aided by Nvidia, are broadening the features and performance of netbooks--adding larger displays and more-capable...

    Blog posts | May 26, 2009 1:09pm PDT

  • Acer AspireRevo

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  • Ion LP2CD USB turntable photos

    Take a closer look at Ion's LP2CD, a turntable that allows you to record your old records directly to CD without requiring a computer.

    Image galleries | March 2, 2009 11:10am PST

  • First reviews of Nvidia's netbook solution

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    Blog posts | February 8, 2009 6:03am PST

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  • Mimicking electric eel cells to produce energy

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  • Toward more efficient fuel cells?

    A very short report from the American Association for the Advancement of Science (AAAS), 'A cool fuel cell,' says that Spanish researchers have developed a new way to operate solid oxide fuel...

    Blog posts | August 4, 2008 9:19am PDT

  • Cracking open the Ion USB turntable

    Watch and learn as TechRepublic dives into the innards of a vinyl-to-MP3 turntable.

    Image galleries | September 12, 2007 10:00am PDT

  • What is nanopantography?

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    Blog posts | September 5, 2007 9:33am PDT

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