The 80386 introduced Virtual 8086 (V86) mode -- allowing real-mode DOS programs to run inside protected mode under OS supervision. While not full virtualization in the modern sense, V86 was the first practical hardware-assisted mechanism on x86 for running legacy software in a protected environment -- used widely in Windows 3.x and Windows 9x.
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。关于这个话题，雷电模拟器官方版本下载提供了深入分析
"The best training I ever had for being a commander was being a parent - because you have to learn how to say no to people."
opening an account at your local branch of a major bank sometime around 1930;