Pressure Ulcer Deï¬nition Localized injury to the skin and /orunderlying tissue usually over a bonyprominence, as a result of pressure, orpressure in combination with shearand/or friction.
1 The 2.4GHz MacBook with 2GB of memory is available for about $1,000.  Apple's ultraportable laptop, the MacBook Air, is aimed at business travelers. The 1.6 or 1.86GHz processor is slower than a MacBook but what it loses in power it gains in portability.
However, the PC average is actually higher than February 2011's $481 average, but nearly identical to February 2010's $512 average. November 2011 marked the lowest average PC notebook price ever with a mark of just $407, due in large part to Black Friday and other holiday sales.That month also saw the lowest average laptop price ever (including MacBooks) at just $560.owever, the PC average is actually higher than February 2011's $481 average, but nearly identical to February 2010's $512 average. November 2011 marked the lowest average PC notebook price ever with a mark of just $407, due in large part to Black Friday and other holiday sales.