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什麼是雲計算?

如果您不確定什麼是雲計算,那麼您可能已經使用在線銀行和社交網絡等雲服務的95%的人中,但是卻沒有意識到。

“雲”是一組不同類型的硬件和軟件,它們共同工作以將計算的許多方面作為在線服務交付給最終用戶。

雲計算是使用硬件和軟件通過網絡(通常是Internet)交付服務。使用雲計算,用戶可以從任何可以訪問Internet的設備上訪問文件並使用應用程序。

雲計算提供商的一個示例是Google的Gmail。Gmail用戶可以從任何設備通過互聯網訪問Google託管的文件和應用程序。

雲計算和PC硬盤計算有何不同?

與將數據存儲在PC本地硬盤上的傳統計算不同,雲計算中的數據存儲在由第三方服務提供商託管的許多物理和/或虛擬服務器上。雲計算文件存儲提供程序的一個示例是Dropbox。可以通過Internet從任何設備訪問Dropbox文件。

什麼是公共雲和私有云?

公共雲基於標準的雲計算框架,該框架由可通過互聯網向公眾提供的文件,應用程序,存儲和服務組成。Gmail是公共雲的一個示例。

私有云由在公司IT部門的控制下在公司防火牆內實施和保護的文件,應用程序,存儲和服務組成。私有云的一個示例是使用Microsoft Exchange的公司,因為授權用戶只能通過安全VPN連接訪問Microsoft Exchange。

有哪些常見的雲服務和公司?

雲中託管的一些常見服務是由AT&T等公司提供的託管桌面。由Google等公司提供的託管電子郵件(如Gmail);雲存儲,由Dropbox等公司提供;和流媒體音樂,由Spotify等公司提供。這些服務,應用程序和文件存儲在雲中,並且用戶可以通過任何設備進行訪問。

有許多使用雲計算的公司和行業部門,例如Amazon和Google。小型,中型和大型上市公司和私有公司都使用雲計算來降低技術獲取成本。

我需要雲計算嗎?

由於公司越來越意識到採用雲帶來的節省成本的優勢,因此云計算市場每年都在繼續增長。

借助硬件服務,公司可以使用雲服務提供商的設備(存儲,硬件,服務器和網絡組件),而不必在設備上花費大量資金。

借助軟件服務,公司的應用程序由雲服務提供商託管,並可以通過網絡使用,從而節省了昂貴的部署和維護成本。

我的文件在雲中安全嗎?

儘管沒有一種存儲解決方案是100%安全的,但是雲存儲提供商可以為公司提供比傳統計算方法更安全,更易訪問的數據存儲場所。

根據服務合同,公司數據的重複副本可以存儲在不同地理位置的服務器上,並在發生災難時由備用電源保護。

如今,許多公司正在轉向混合雲計算模型。通過這種模型,公司可以靈活地將敏感數據安全地存儲在私有云中,而將公共數據存儲在公共雲中。兩種基礎結構都作為單獨的唯一實體保存。

什麼不是雲?

云不是由漂浮在網絡空間中的微小水滴組成的蓬鬆白色物質。云不受大氣壓等天氣變化的影響。

云不在單個位置中。實際上,雲可以在任何地方。雲可以在您公司的數據中心中,也可以託管在第三方數據中心中。

雲的增長不是由“大企業”驅動的。消費者購買支持雲的設備可以驅動雲的增長,這些設備可以在工作,家庭和移動中連接到雲計算服務。

云不是“時尚”。目前,全球有12億人在使用Facebook。這個數字佔世界人口的11%。

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