PC problem

Hello everyone....I need your help!
When I turn on my pc,it seems to work properly judging from the sound it makes and the little light on the central unit...the thing is,that my screen remains black and also,my mouse and keyboard look like they are not functioning...help me pls... :)
 
It could be your monitor has gone bad or your video card. You could start with swapping out video card or swapping the monitor out. To rule out what the problem maybe.
 
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