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The Mac Pro line is a series of Intel Xeon–based workstation and server computers manufactured by Apple Inc. The Mac Pro, in most configurations and in terms of speed and performance, is the most powerful computer that Apple offers. It is the high-end model of the three desktop computers in the current Mac lineup, the other two being the iMac and Mac Mini. The first-generation Mac Pro has a rectangular tower case which outwardly resembles the last version of the Power Mac G5, and has similar expansion capabilities. The first Mac Pro has dual Dual-core Xeon Woodcrest processors. It was replaced by a dual Quad-core Xeon Clovertown model on April 4, 2007, and again on January 8, 2008 by a dual Quad-core Xeon Harpertown model. The 2012 Mac Pro is largely based on a model that was announced on July 27, 2010. It features Nehalem/Westmere architecture Intel Xeon processors. These CPUs offer optionally twelve processing cores. The machine itself at its most evolved is able to accommodate up to four 2 TB hard disk drives or 512 GB solid state drives, as well as the ATI Radeon HD 5770/5870 GPU units, one per slot. The second-generation design of Mac Pro was announced at the 2013 Apple Worldwide Developers Conference (WWDC) opening keynote on June 10, 2013. Apple states that the new Mac Pro achieves twice the overall performance of the last model.〔(【引用サイトリンク】 title=At long last! Apple announces new Mac Pro with cylindrical design )〕 The redesigned Mac Pro takes up less than one eighth the volume of immediately previous model, being shorter (), thinner () and less massive (). The machine supports one central processing unit (CPU) (up to a 12-core Xeon E5 CPU), four 1866 MHz DDR3 slots, dual AMD FirePro D series GPUs (up to D700 with 6 GB VRAM each), and PCIe-based flash storage. There is updated wireless communication and support for six displays. Reviews have been generally positive, with caveats. ==1st generation== Apple stated that an Intel-based replacement for the PowerPC-based Power Mac G5 machines had been expected for some time before the Mac Pro was formally announced on August 7, 2006 at the annual Apple Worldwide Developers Conference (WWDC).〔keynote presentation at the Apple Worldwide Developers Conference (WWDC), August 7, 2006.〕 The iMac, Mac Mini, MacBook, and MacBook Pro had moved to an Intel-based architecture starting in January 2006, leaving the Power Mac G5 as the only machine in the Mac lineup still based on the PowerPC processor architecture Apple had used since 1993. Apple had dropped the term "Power" from the other machines in their lineup, and started using "Pro" on their higher-end laptop offerings. As such, the name "Mac Pro" was widely used before the machine was announced. The Mac Pro is in the Unix workstation market. Although the high-end technical market has not traditionally been an area of strength for Apple, the company has been positioning itself as a leader in non-linear digital editing for high-definition video, which demands storage and memory far in excess of a general desktop machine. Additionally, the codecs used in these applications are generally processor intensive and highly threadable, which Apple's ProRes whitepaper describes as scaling almost linearly with additional processor cores. Apple's previous machine aimed at this market, the Power Mac G5, has up to two dual-core processors (marketed as "Quad-Core"), but lacks the storage expansion capabilities of the newer design.〔 Original marketing materials for the Mac Pro generally referred to the middle-of-the-line model with 2 × dual-core 2.66 GHz processors. Previously, Apple featured the base model with the words "starting at" or "from" when describing the pricing, but the online US Apple Store listed the "Mac Pro at $2499", the price for the mid-range model. The system could be configured at US$2299, much more comparable with the former base-model dual-core G5 at US$1999, although offering considerably more processing power. Post revision, the default configurations for the Mac Pro includes one quad-core Xeon 3500 at 2.66 GHz or two quad-core Xeon 5500s at 2.26 GHz each.〔(【引用サイトリンク】title=Mac Pro page at Apple's online store )〕 Like its predecessor, the Power Mac G5, the pre-2013 Mac Pro was Apple's only desktop with standard expansion slots for graphics adapters and other expansion cards. Apple received criticism after an incremental upgrade to the Mac Pro line following the 2012 WWDC. The line received more default memory and increased processor speed but still used Intel's older Westmere-EP processors instead of the newer E5 series.〔Chris Foresman, ("Mac Pro gets minor update with standard 12-core option, no Xeon E5" ), ''ArsTechnica'', June 11, 2012〕 The line also lacked then-current technologies like SATA III, USB 3, and Thunderbolt, the last of which had been added to every other Macintosh at that point. An email from Apple CEO Tim Cook promised a more significant update to the line in 2013.〔Jordan Kahn, ("Andy Hertzfield: The only thing that’s still high-end about Mac Pro is the bloated price" ), ''9to5 Mac'', June 11, 2012〕 Apple stopped shipping the first-generation Mac Pro in Europe on March 1, 2013 after an amendment to a safety regulation left the professional Mac non-compliant. The last day to order was February 18, 2013.〔Karen Haslam, ("Apple confirms it will cease shipping Mac Pro in Europe on 1 March" ), ''MacWorld'', January 13, 2013〕 The first generation Mac Pro was removed from Apple's online store following unveiling of the redesigned second generation Mac Pro at a media event on October 22, 2013. 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「Mac Pro」の詳細全文を読む スポンサード リンク
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