什麼是USB(Universal Serial Bus,通用串列匯流排) ?

USB(Universal Serial Bus,通用串列匯流排) 是連接外部設備的一個串列匯流排標準,在電腦上使用廣泛,但也可以用在機頂盒和遊戲機上,補充標準(On-The-Go)使其能夠用於在可攜設備之間直接交換數據。USB最初是由英特爾與微軟公司倡導發起,其最大的特點是支持熱插拔(Hot plug)和即插即用 (Plug&Play)。當設備插入時,主機枚舉(enumerate)此設備並載入所需的驅動程序,因此使用遠比PCI和ISA匯流排方便。原標準中USB 1.1的最大傳輸頻寬為12Mbps,USB 2.0的最大傳輸頻寬為480Mbps,USB3.0為4.8 Gbps。USB 3.0的技術規範于2008年8月13日發行,其商業產品預計于2009年或2010發行。USB 3.0的設計兼容USB 2.0與USB 1.1版本,並且使用了更有效的協議來節約能源。
A USB system has an asymmetric design, consisting of a host, a multitude of downstream USB ports, and multiple peripheral devices connected in a tiered-star topology. Additional USB hubs may be included in the tiers, allowing branching into a tree structure with up to five tier levels. A USB host may have multiple host controllers and each host controller may provide one or more USB ports. Up to 127 devices, including the hub devices, may be connected to a single host controller.
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Patriot推出毒蛇系列8GB DDR2-800雙通道極限超頻記憶體組
美國記憶體模組及快閃記憶體大廠-美商博帝科技(Patriot Memory),宣布推出8GB(2×4GB)毒蛇系列極限超頻記憶體,皆經嚴格雙通道測試確保最大品質及相容性。專為Microsoft® 64-bit Vista作業系統所設計,Patriot毒蛇系列8GB記憶體組將是專業PC及遊戲玩家的最佳選擇!
美商博帝科技(Patriot Memory)表示:「Microsoft® 64-bit Vista作業系統在高階電腦系統上已經越來越普遍。專業電腦玩家透過充分利用8GB的記憶體容量,將可以顯著提升現今高記憶體承載應用程式的執行效能!
Patriot Memory announced the released of their 8GB Viper series DDR2 PC2-6400 800MHz kits. The 8GB kit consists of two, 4GB single modules, which have been paired and tested to ensure maximum quality and compatibility. Designed to enhance the experience of Microsoft’s® 64-bit Vista operating system, these 8GB Viper series kits are the perfect choice for gamers and enthusiasts.
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希捷硬碟Showcase DVR expander通過認證
全球儲存解決方案供應商希捷科技日宣布其Showcase DVR擴充硬碟通過認證,相容於Pace有線數位機上盒視訊錄影機(DVR),提供消費者更大的儲存媒介,搶攻家庭娛樂市場。
Pace機上盒產品已在全美各地售出超過數百萬台,此次希捷擴充硬碟通過產品認證,消費者可以透過有線電視服務供應商取得該產品。
Seagate (NASDAQ:STX), the world leader in storage solutions, today announced that its Showcase™ DVR expander has been certified for compatibility with Pace cable set-top box digital video recorders (DVR).
The addition of Pace to Seagate’s growing list of qualified DVR manufacturers means that more people can enjoy even more of their favorite recorded television programs, without having to delete because their DVRs are full. The Seagate Showcase DVR expander is available in 500GB and 1 Terabyte capacities, for up to 200 hours of additional HD movies or 1,000 hours of additional standard definition television. Featuring a Seagate Pipeline™ HD hard drive inside, developed specifically to meet the HD video demands of today’s DVRs, the Seagate Showcase DVR expander is optimized for the home entertainment center, providing ultra-quiet acoustics and less heat. The Showcase DVR expander comes with eSATA or USB 2.0 interfaces, for easy connectivity and fast video streaming.
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希捷Seagate發表史上最快、最環保的硬碟Savvio 15K.2
全球儲存解決方案領導供應商希捷科技(NASDAQ: STX)今日發表史上最快且最環保的硬碟Savvio 15K.2。這款15,000轉硬碟是Savvio系列2.5吋SAS 2.0企業儲存解決方案的最新產品。Savvio 15K.2硬碟兼具超高效能及可靠度,並具備自我加密功能,以及希捷科技領先業界的低功耗設計。Savvio 15K.2和希捷甫推出的Savvio 10K.3硬碟皆屬希捷统一儲存架構,將硬碟的介面、構型及安全功能整合在一個共同的最佳平台,以提供高效能且簡易的儲存解決方案。希捷統一儲存架構和 Savvio系列硬碟協助IT部門強化儲存管理、整合性、安全性與效能,同時確保企業在任何狀況下能順利營運。
Seagate (NASDAQ:STX) today introduced the world’s fastest and greenest drive – the Savvio 15K.2 HDD, the new 15K-rpm addition to the Savvio family of 2.5-inch SAS 2.0 enterprise solutions. Savvio 15K.2 HDD delivers the industry’s highest hard drive performance and reliability as well as adding a self-encrypting drive option, all while maintaining Seagate’s industry leading, record low power consumption. The Savvio 15K.2 hard drive and the previously-announced Savvio 10K.3 hard drive are both part of Seagate’s new Unified Storage architecture which converges disk drive interfaces, form factors, and security features into a common best-of-breed platform for powerful, yet simple storage solutions. Together, Seagate’s Unified Storage architecture and the Savvio hard drive family improve manageability, integration, security and performance benefits for IT departments while ensuring business continuity with no compromise.
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