Is it possible to upgrade RAM in MacbookAir 4,1?

Is it possible to upgrade RAM in MacbookAir 4,1 Late 2011, 2G to 4G?

MacBook Airs are designed with a purpose that differentiates them from the rest of the Macbook line. That is to place weight and size reduction at one of the highest of priorities. In doing so, compromises have to be made. Upgradeable memory takes up addional space, in that it requires acessability and a slot interface, bot of which would add both weight and dimensional size to accomodate it. By making the memory an integral part of the logicboard, the computer can be made thinner.
So, when you buy somthing of the MBA's form factor, you have to pay special attention to buying the computer with all the options available at time of purchase that you & the computer will ever need, where those components are not upgradeable for space and weight consideration.
The MacBook Air, despite the desire, is not just a shrunken MacBook Pro. Space and weight savings is of a higher priority than is upgradeability in the MBA.

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    Kappy     Nov 24, 2014 3:01 PM 
      Re: Mac Pro's (early 2008) Back up plan towards a possible OS upgrade to Yosemite  in response to Juan Huerta      
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    Erase the target and try again.
    But if the computer fails to start because I didn't create a good copy, how do I go back? Keyboard shortcuts? I keep reading that a wired keyboard must be used...and that's scary. If that's true, could I hook up any of my Windows based keyboards via USB?
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    Yes.

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