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I bought this Asus K53E laptop two years ago but I don't even know what this light means.

I'm talking about the middle one (next to the battety \ wireless)

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I'm surprised you didn't find an answer in your laptop's user manual. You did check your user manual, didn't you ? –  pleinolijf Dec 5 '12 at 14:19
    
@pleinolijf I bought this laptop 2 year ago, I don't have the manual anymore. –  Billie Dec 5 '12 at 15:56
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1 Answer

up vote 5 down vote accepted

It represents your laptop's hard drive. Whenever your hard disk is being accessed (reading or writing), the LED will light up.

A cylindrical shape is the universally accepted icon used to represent a hard disk. For background information, there is a good question on SU already.

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the question's on this site i.e. Super User not Stack Overflow. –  Sathya Dec 5 '12 at 14:34
    
True, I meant the Stack Exchange network (of sites). I'll edit my answer. –  pleinolijf Dec 5 '12 at 14:36
    
Sooooooo cool!! Thank you –  Billie Dec 5 '12 at 15:55
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