9 个月
XDA Developers on MSNExclusive: How internet connectivity grew from dial-up to DSL to fiber, according to one of ...DSL was created to address clogging issues in AT&T's phone lines caused by the slow speeds of dial-up internet. Now, AT&T now ...
DSL is faster than analog dial-up but significantly slower than cable service. Download speeds have reached 10 Mbps and beyond, but the connection is asynchronous. In order to prevent users with ...
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