They have no virtual memory support, don't have direct access to the computer's RAM, and have extremely limited interrupt support.
它们没有虚拟内存的支持，不能直接访问计算机的RAM，中断支持也非常有限。
They have no virtual memory support, don't have direct access to the computer's RAM, and have extremely limited interrupt support.
它们没有虚拟内存的支持，不能直接访问计算机的RAM，中断支持也非常有限。
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