Welcome to chess and chess com, Darryl.
1st question: No, there is no difference. All the same.
2nd question: http://en.wikipedia.org/wiki/Glicko_rating_system
Scoring
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Hi My name is Darryl, and I'm new to chess. I have been wondering about the scoring system. When an opponent disconects, lets the time run out, or loses is there any difference in the amount of points i gain or they lose?
Also when i first started I noticed that the point gains and losses were larger then they are now. If there is somwhere where this information is posted, please link it below.
Thanks
Darryl :)