Since almost everyone USES a computer in the office or at school, the need for the traditional desktop model at home is vanishing.

无论在办公室还是学校，几乎人手一台电脑，所以人们对家用台式机的需求正逐渐消失。

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However, it was painful for DELL to strip back the fixed costs associated with its desktop operating model that once gave it strength.

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Mobile screens are too small, no one has really come up with a viable (or at least as productive as desktop) advertising model here.

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More specifically, advertisers and brands are already realizing that simply transferring the creative model from desktop, such as banner ads, does not work on mobile.

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