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Xserve was a line of rack unit computers designed by Apple Inc. for use as servers. When the Xserve was introduced in 2002, it was Apple's first designated server hardware design since the Apple Network Server in 1996. (In the meantime, ordinary Power Macintosh G3 and G4 models were rebranded as Macintosh Server G3 and Macintosh Server G4 with some alterations to the hardware, such as added Gigabit Ethernet cards, UltraWide SCSI cards, extra large and fast hard drives etc. and shipped with Mac OS X Server software.) It initially featured one or two PowerPC G4 processors, but was later switched over to the then new PowerPC G5, and subsequently switched again to two quad-core Intel Nehalem microprocessors. The Xserve can be used for a variety of applications, including file server, web server or even high-performance computing applications using clustering – a dedicated cluster Xserve, the Xserve Cluster Node, without a video card and optical drives was also available. On November 5, 2010, Apple announced that the Xserve line would be discontinued on January 31, 2011〔(【引用サイトリンク】title=Xserve Transition Guide )〕 and replaced with the Mac Pro Server and the Mac Mini Server. == Xserve G4 == Apple introduced the Xserve on May 14, 2002 (released in June). Initially, two configuration options were available: a single-processor Xserve at US$2999 and a dual-processor Xserve at US$3999. Xserves sold before August 24, 2002 shipped with Mac OS X v10.1 "Puma" Server, while those sold after shipped with Mac OS X v10.2 "Jaguar" Server. On February 10, 2003, Apple released an improved and expanded Xserve lineup. Improvements included one or two 1.33 GHz PowerPC G4 processors, faster memory, and higher capacity Ultra ATA/133 hard disk drives. The front plate was redesigned for a slot-loading optical drive. A new model, the Xserve Cluster node was announced at the same price as the single-processor Xserve, featuring two 1.33 GHz processors, no optical drive, a single hard drive bay, no video or Ethernet cards, and a 10-client version of "Jaguar" server. On April 2, 2003 the Xserve RAID was introduced, providing a much higher capacity and higher throughput disk subsystem for the Xserve. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Xserve」の詳細全文を読む スポンサード リンク
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