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.
That said, the latest 15-inch Apple MacBook Pro with Retina Display ($1,999) is still an excellent power user's laptop, a veritable object of lust, which earns our Editors' Choice nod for high-end desktop replacement laptops.Compare.pple's latest 15-inch MacBook Pro represents a slight upgrade to the best system mobile Mac power users can buy. And while the Windows competition is breathing down its figurative neck, it's still our top choice for high-end desktop-replacement laptops.