Hi Ghada,
Your hardware looks fine to me. However, as always, it depends on what type of games you would like to develop. Our course projects are not that resource-intensive, so I think that your laptop might meet the hardware requirements of Unity.
One tip for you: When developing your game, make sure the power-chord is plugged in. Otherwise, your device might be running in the power saving mode slowing everything down.
I hope this helped. 
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