1) Here are 3 different models of this computer. What's the difference:
http://laptops.toshiba.com/laptops/satellite/T100/T115-S1108
http://laptops.toshiba.com/laptops/satellite/T100/T115-S1105
http://laptops.toshiba.com/laptops/satellite/T100/T115-S1100
3) Also, which is better, this...