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作業系統是您打開電腦或伺服器時首先開始的程式。所有其他應用程式依賴它來正常運行。一些流行的作業系統如Microsoft Windows，Mac OS和Linux。

Microsoft EDU WINDOWS 2000 CAL, 1 GB, 0.125 GB, 133 MHz or higher Pentium-compatible Central Processing Unit (CPU)Windows 2000 Server supports up...

Microsoft EDU WINDOWS 2000 CAL. 最小硬碟機數量: 1 GB, 最低 RAM: 0.125 GB. 處理器最低配置: 133 MHz or higher Pentium-compatible Central Processing Unit (CPU)Windows 2000 Server supports up...

EDU WINDOWS 2000 CAL

Microsoft EDU WINDOWS 2000 CAL