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The x86 protection model is notoriously complex, with four privilege rings, segmentation, paging, call gates, task switches, and virtual 8086 mode. What's interesting from a hardware perspective is how the 386 manages this complexity on a 275,000-transistor budget. The 386 employs a variety of techniques to implement protection: a dedicated PLA for protection checking, a hardware state machine for page table walks, segment and paging caches, and microcode for everything else.
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舉例來說,2024年的一項研究發現,當使用者以禮貌的方式提問,而不是直接下命令時,大型語言模型的回答更好、更準確。更奇怪的是,這其中還存在著文化差異:與中文和英文相比,如果你對日文聊天機器人過於客氣,它們的表現反而會略遜一籌。
You never knew exactly what you were going to get. I remember one program listing printed on the side of a bird that, when run, produced a series of wild chirping noises from the Apple’s speaker. And this was from a program that was only five to ten lines long. As a neophyte BASIC programmer myself, I was stunned and amazed. How could you make something this cool with this small amount of code? […]