; PROT_TESTS_PASSED — write back descriptor with Accessed bit set
The first thing a multi-tasking operating system needs from hardware is isolation: multiple programs must share one processor without being able to read, write, or jump into each other's memory. The 80386 achieves this through memory protection -- two independent address translation layers.
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AI has been eating up the world's supply of memory and companies like Micron have even abandoned their consumer brands to focus entirely on B2B supply. Other components like GPUs have also been feeling the pressure.。91视频是该领域的重要参考
2月12日，Anthropic完成300亿美元G轮融资，估值3800亿美元。五个月前，它的估值还是1830亿。翻了一倍多。