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.
Apple's first ever computer has been sold for Â£398,000 at a German auction - and it still runs. The revolutionary Apple 1 has been signed by Apple computer inventor and co-founder Steve Wozniak, who designed and built the machine from scratch with his own hands in 1976.