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.
The terms of the following members are ending this year:
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此外，部分消费者转向购买二手旗舰或对旧机进行扩容。这一趋势带动非官方维修和二手市场的繁荣。在DIY市场，主板销量相比去年同期下降了40%-50%，部分整机零售商甚至推出无内存的整机产品以应对成本压力。