主流计算机硬件产品更新换代周期己经缩短到半年，软件的更新速度也越来越快。
The renewal cycle of mainstream computer hardware is reduced to a half year and that of software is much shorter.
分析家们称，虽然下滑中大部分出现在家用个人电脑上，但是企业对电脑更新换代周期也更长。部分因为近期计算机技术进步只呈现递增趋势。
And while a lot of the decline is in household PCs, businesses are also waiting longer to replace their computers partly because recent advances in PC technology are only incremental, analysts say.
笔记本电脑每年都会更新换代，手机更加频繁，在这样短的生命周期中，没有人鼓励制造可以永存的产品。
Laptops are refreshed yearly, cell phones even more frequently, and with a life cycle that short, where's the incentive to build something to last?
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