Help with computer to play games?

Oh my goodness! You have a single-core processor? And ONLY 512 MB of RAM?!?!?!? Very low-end laptop, however, maplestory has very very low requirements and you should be able to play it. You won't be able to run it at he highest settings, or even medium settings but low settings should work. Wireless doesn't make a difference, you can be using a cord or not.