I need to buy laptop and i have little knowledge about computer and it's processor. please help me...?

The computer looks perfectly fine for what you want to do. However it's hard to say if it's a good deal because you didn't give a price. I highly recommend getting a Dell Vostro though here is a link: http://www.dell.com/us/en/business/notebooks/vostronb/ct.aspx?refid=vostronb&s=bsd&cs=04&ref=lthp