Rebecca Morelle,Science Editorand
The 80286 introduced "Protected Mode" in 1982. It was not popular. The mode was difficult to use, lacked paging, and offered no way to return to real mode without a hardware reset. The 80386, arriving three years later, made protection usable -- adding paging, a flat 32-bit address space, per-page User/Supervisor control, and Virtual 8086 mode so that DOS programs could run inside a protected multitasking system. These features made possible Windows 3.0, OS/2, and early Linux.，详情可参考爱思助手下载最新版本
«Хотим поделиться с вами радостной новостью! Мы (...) скоро снова станем родителями», — написала супруга юмориста.。safew官方版本下载是该领域的重要参考
The new race to the MoonThe Global Story
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