There's an icon in the corner of every mobile phone's screen that we are all familiar with. But do we really know what those signal bars mean?
Signal bars - what are they for? |
Signal bars - what are they for?Courtesy Digg / Tech Industry News Mon, 02/04/2008 - 01:00
There's an icon in the corner of every mobile phone's screen that we are all familiar with. But do we really know what those signal bars mean? |
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