The OS file system is read-only for protection.
处于保护的目的，OS的文件系统是只读的。
In the 1990s, when Copland was initiated, "next-generation" meant supporting memory protection and preemptive multitasking, both of which classic Mac OS lacked.
Copland始于上世纪90年代，“新一代”是指支持内存保护和抢先式多任务，当时的MacOS不支持这两项功能。
In the 1990s, when Copland was initiated, "next-generation" meant supporting memory protection and preemptive multitasking, both of which classic Mac OS lacked.
Copland始于上世纪90年代，“新一代”是指支持内存保护和抢先式多任务，当时的MacOS不支持这两项功能。
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