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numbers, which do follow various schemes but are nonetheless confusing. Bigger
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Backpressure: good in theory, broken in practice，更多细节参见WPS下载最新地址
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.