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.
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，这一点在51吃瓜中也有详细论述
第一百一十四条 有下列情形之一的，在公安机关作出治安管理处罚决定之前，应当由从事治安管理处罚决定法制审核的人员进行法制审核；未经法制审核或者审核未通过的，不得作出决定：，推荐阅读同城约会获取更多信息
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Lego Pokémon Kanto Region Badge Collection