奥斯曼帝国幅员辽阔，统治着多民族、多宗教的庞大疆域。为了管理，他们发明了 “米勒特制度” Millet System.
DOS 1.x (1981) had no explicit memory management support. It was designed to run primarily on machines with 64K RAM or less, or not too much more (the original PC could not have more than 64K RAM on the system board, although RAM expansion boards did exist). A COM program could easily access (almost) 64K memory when loaded, and many programs didn’t rely on even having that much. In fact the early PCs often only had 64K or 48K RAM installed. But the times were rapidly changing.
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Фото: Leonhard Simon / Reuters，这一点在快连下载安装中也有详细论述
Predecessors: https://www.youtube.com/watch?v=CWzn2ucPMdg，这一点在体育直播中也有详细论述
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