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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!
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什麼是外設?

外圍設備是連接到計算機外部的任何設備,通常用於增強計算機的功能或使其更加用戶友好。這可以包括鼠標、鍵盤、打印機、掃描儀和其他輸入/輸出設備。任何不被視為中央處理單元 (CPU) 或內存一部分的設備都可以歸類為外圍設備。

外圍設備有哪些類型?

有許多不同類型的外圍設備可以連接到計算機。其中包括鍵盤和鼠標等輸入設備、打印機和顯示器等輸出設備、CD/DVD 驅動器、外部硬盤驅動器和 USB 拇指驅動器等存儲介質、網絡適配器和調製解調器等通信設備、遊戲控制器等專用設備和樂器、專用卡(例如圖形卡和聲卡)、擴展總線(例如用於高性能應用的PCI-E)以及其他雜項(從用於冷卻的風扇到用於流視頻饋送的數字攝像機)。

外圍設備如何工作?

外圍設備通常通過以下兩種方式之一與 CPU 通信:直接通過專用電纜或通過總線技術。直接連接的外設通常速度有限,但可提供從設備到 CPU 的專用數據傳輸,而不會受到總線系統上其他組件的干擾。總線系統允許多設備連接,但由於同一總線系統上的不同組件同時發出多個請求,因此通常需要共享帶寬。台式電腦中常見的總線有 SATA(串行 ATA)、IDE(集成驅動電子設備)和 USB(通用串行總線)。

為什麼外圍設備很重要?

外圍設備在允許用戶使用自己的偏好與計算機交互方面發揮著重要作用,同時還允許他們訪問與其手頭任務相關的其他數據源。鍵盤允許用戶快速輸入單詞,而無需單獨點擊每個單詞。打印機使用戶能夠獲得他們創建的文檔的硬拷貝。掃描儀有助於將文本或照片捕獲為可編輯的格式。外部硬盤提供備份/存儲空間,同時釋放本地驅動器空間;網絡設備通過網絡與其他機器進行通信;數碼相機讓人們可以輕鬆地拍照,而不是用手把它們畫出來。

外圍設備的示例是什麼?

外圍設備的一個例子是 USB 閃存驅動器,它允許用戶將數據存儲在其上,以便在計算機之間傳輸或僅在需要時提供額外的存儲容量。USB 閃存驅動器並不直接連接到主板,而是通過當今大多數 PC 機箱背面板上的可用通用串行總線端口進行連接。此外,還有通過藍牙和 Wi-Fi 等短距離網絡進行通信的無線外設,允許手機在範圍內的機器之間幾乎即時傳輸圖片和音頻文件,無需任何電纜。

外圍設備使用哪種類型的連接?

使用的連接方法取決於設備本身、它支持的功能以及計算機本身可用的功能。如果存在 USB 端口,那麼這可能是您的首選,因為大多數現代設備都支持此連接標準,並且跨所有平台(包括 Windows 操作系統(以及桌面 Linux 發行版))具有通用兼容性。根據您安裝的主板類型,可能存在其他連接。如果您希望將特定的硬件組件(例如顯卡)直接連接到電腦的主板插槽上,而不是首先通過延長線或適配器卡,則應該進行研究。

I/O端口是做什麼用的?

I/O 端口代表輸入/輸出端口,它們將鍵盤、操縱桿等各種外部設備連接到計算機的主電路板上。通常,通過 BIOS 設置或將這些附加硬件組件插入專門設計的板載或外部添加的擴展卡的專用插槽中。這使得用戶可以靈活地將新硬件連接到計算機系統上,與手動將這些部件直接焊接到主板 PCB 上相比,減少了總體時間,也可能節省以後的維修成本。

外圍設備和擴展卡有什麼區別?

外圍設備是連接到計算機外部的任何設備,通常用於增強計算機的功能或使其更加用戶友好。這可以包括鼠標、鍵盤、打印機、掃描儀和其他輸入/輸出設備。然而,擴展卡將插入主板上的特定插槽,例如 PCI Express (PCIe)、ISA 或 AGP,通常用於通過提供額外的處理能力或改進的圖形等專用功能來提高計算機的性能。擴展卡通常需要專用驅動程序才能正常運行,而許多外圍設備是“即插即用”的,無需安裝特殊驅動程序。只需將它們插入即可立即工作。

如何將外圍設備連接到計算機?

將外圍設備連接到計算機的最常見方法是通過一種通用連接類型 USB(通用串行總線)。如今,它幾乎只出現在台式機和筆記本電腦上,有多個端口可用於在兩台計算機之間的短距離內同時連接多個設備。如果某些設備不支持此協議,則可能需要適配器,但這些設備通常非常便宜,並且可以從本地計算機商店或在線零售商輕鬆獲得。還存在其他連接,例如 Firewire,它在一些專業音頻和視頻應用程序中很流行,但由於其跨 PC 平台的兼容性有限,因此不再被廣泛使用。

所有外圍設備都與所有計算機兼容嗎?

一般來說,沒有。儘管大多數現代計算機應該毫無問題地支持各種外圍設備,但型號之間可能存在細微差別,這意味著某些配件即使外觀相同,也無法與某些計算機配合使用。大多數製造商都會列出有關其產品支持哪些硬件組件的具體詳細信息,因此,如果您計劃稍後在家裡的系統中使用某些類型的外圍設備,那麼在購買之前進行研究是明智的選擇。

我的外設需要額外的驅動程序嗎?

大多數情況下不會。現代基於 USB 的外圍設備現在開箱即用,這意味著您只需將它們插入並立即使用,無需事先下載和安裝任何額外的 Windows 驅動程序。但是,情況並非總是如此,因為某些較舊的型號可能需要自定義驅動程序才能發揮作用或使用基於供應商的軟件解決方案,因此請在嘗試任何連接之前仔細檢查每個項目的文檔,否則可能會出現意外結果。

哪些類型的外圍設備需要外部電源?

某些類型的外圍設備(例如打印機、投影儀和顯示器)通常需要連接額外的電源才能正常工作。這通常是因為它們運行所需的電量並不總是僅由 USB 連接或其他類型的無線連接提供。

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