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11.11 最強折扣反應熱烈!
優惠延長一週!最後倒數,立即行動!
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11.11 最強折扣反應熱烈!
優惠延長一週!最後倒數,立即行動!
天數
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什麼是 NIC(網路介面卡)?

網路介面卡 (NIC) 是將其連接到網路的任何電腦的基本元件。它使數據能夠在電腦和其他網路連接設備(如路由器或交換機)之間發送和接收。NIC 可以使用有線或無線技術將電腦連接到網路的其餘部分。

網卡如何工作?

NIC 充當物理層(管理與電纜或無線天線的物理連接)和數據鏈路層(提供可靠的通信通道)之間的介面。通過將來自電纜或天線的信號轉換為數位信號,數據通過乙太網電纜、光纖或Wi-Fi波發送。這個過程是實時發生的,沒有任何一方有意識的努力。然後,信號由連接兩端的設備解碼,以便進一步處理。

NIC(網路介面卡)有哪些不同類型?

有兩種主要類型的網路介面卡 - 有線和無線。有線網路需要乙太網電纜,而無線網路依靠天線提供的射頻在更遠的距離上發送和接收數據,並且比有線連接干擾更小。不同類型的連接器用於各種應用,例如用於紅外網路的同軸電纜和用於快閃記憶體驅動器的USB(通用串行總線)埠。無線適配器通常包含多個元件,包括天線、收發器晶元和放大器晶元,以便根據其頻率範圍容量與近距離甚至長距離內的其他無線設備進行通信。

如何選擇網卡?

選擇網路介面卡 (NIC) 主要取決於連接電腦所需的網路類型 - 有線或無線。以及您的預算和性能要求,例如速度、延遲、距離覆蓋範圍以及與現有基礎設施的相容性(如有必要)。此外,某些卡可能具有其他功能,例如安全系統功能,這也將決定它們是否適合您的需求。為了確保您購買的卡符合您的所有要求,在根據您的特定需求和規格決定購買決定您需要哪種類型的卡之前,請務必進行研究。

使用網卡有什麼優點?

與使用傳統的網路方法(如數據機或撥號連接)相比,使用網路介面卡具有許多優勢,這些方法在局域網開始在辦公室和家庭中更廣泛地使用之前很流行,因為它們與舊選項相比具有便利性和成本效益。NIC 允許通過它相互連接的計算機訪問比慢速數據機連接所能提供的更大的頻寬;提高了安全性,因為大多數現代卡都帶有內置防火牆;提供靈活性,因為大多數計算機可以同時支援多個卡/連接;創建高達 1 Gbps 的高速鏈路,因此速度不再受技術限制;由於消除了可能中斷傳輸的外部佈線的噪音,因此提供了更好的可靠性;提供可擴充性,使用戶能夠在不更改現有基礎架構的情況下添加新計算機;此外,它們易於安裝,只需基本的技術知識。

我可以向計算機添加多張卡嗎?

是的!大多數台式計算機都帶有用於附加擴展卡的插槽,因此可以添加多個網路介面卡,因為現代主機板通常至少有四個插槽,可以根據不同的需求安裝許多不同類型的插槽,例如如果您的目標是通過在單獨的連接之間添加額外的負載平衡或通過共用 LAN(局域網)接入點連接多台計算機來提高整體速度輸送量。此外,如今許多筆記型電腦型號都具有內置的Wi-Fi功能,因此它們不需要任何額外的硬體,但仍然能夠運行複雜的網路任務,如檔共用或在線遊戲,提供出色的便攜性,結合高效的性能,潛在的高級使用者尋求當今最大的移動性。

是否所有電腦都必須安裝 NIC?

不,並非所有計算機實際上都預裝了可用的網路介面卡,尤其是那些已經存在集成圖形處理器而不是現在典型的視頻卡插槽的計算機,因此在嘗試連接LAN之前,請仔細檢查確保一個包含您的網路介面卡,運行應用程式需要Internet連接。如果沒有,只需購買最適合確切需求的相容型號,即可查看有線家庭辦公室設置是否需要強大的遊戲連接相容藍牙熱點連接行動裝置。根據每種情況必須處理的配置,有很多選擇可供選擇。

是否需要升級現有的網路介面卡?

通常,不需要升級當前的網路介面卡(NIC),除非遇到頻繁丟失的信號,包括簡單的檔傳輸流高清視頻剪輯。如果當前型號顯示磨損跡象開始運行速度比原始規格慢,那麼絕對值得考慮升級更新更快的版本修復問題 夫婦閱讀評論事先瞭解究竟應該期望什麼條款 性能提升加上額外的功能可能有益於長期使用的日常使用,但請記住,不要總是等同於更高的價格標籤更好的產品提供更新的版本 舊型號不一定功能齊全 完全有意義 使用上下文調查很少咬自己找出適合最大利益的人。

網路介面卡有不同的標準嗎?

是的,存在不同的網路介面卡標準,這些標準包括用於乙太網卡的IEEE 802.3,用於無線網卡的802.11和用於數據傳輸速度高達10Gbps或更高的USB 2.0 / 3.0。每個標準都定義了可以通過特定連接發送的數據類型以及其他功能,例如加密,身份驗證,信號強度以及與現有系統和協定的相容性。因此,在選擇特定型號之前考慮您的所有要求非常重要,以確保在連接到您需要的任何類型的網路時實現最佳性能和效率。

一個 NIC 可以由多台電腦共用嗎?

是的!某些型號的網路介面卡設計有多個埠,使多台計算機能夠同時連接或在交換機或集線器的説明下在單獨的設備中使用相同的卡,交換機或集線器是將兩個網路連接在一起的設備,允許它們之間的資訊流動。如果您需要在多台計算機之間共用一個 Internet 連接,這種類型的設置特別有用,但請記住,每台電腦將受到該卡支援的最大速度/帶寬的限制。

如何在計算機上設置 NIC?

在計算機中設置網路介面卡(NIC)的過程因您安裝的作業系統和版本以及要安裝的特定型號的卡而異,但有一些共同的步驟,例如確保所有電纜正確連接,從“開始”功能表訪問控制面板和系統屬性以及安裝軟體和驅動程序必須使其在之後正常工作。此外,請注意,某些卡可能帶有額外的元件,例如天線 LAN 埠適配器。需要充分發揮潛力,它們也需要額外的時間正確設置,除非已經直接集成的PC主機板通常比目前市場上可用的獨立PCI / PCI-Express版本更容易安裝。

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