How does Steam work ?

Hi , i wan't to understand how does steam work because i think i don't really understand it it says that i can play my game on "any" device , does that mean that I can play Battlefield 3 on my laptop which its specifications doesn't meet the minimum system requirements to run battlefield 3 ? show more Hi , i wan't to understand how does steam work because i think i don't really understand it
it says that i can play my game on "any" device ,
does that mean that I can play Battlefield 3 on my laptop which its specifications doesn't meet the minimum system requirements to run battlefield 3 ?
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