They are 2 names for the same thing. Companies just stopped calling them laptops since there have been cases of them overheating from people setting them on their laps and blocking air flow.
A notebook generally has less features than a laptop such as: being lighter, having no CD/DVD drive, a smaller screen, and a lower-end graphics card. Notebooks tend to have longer battery life...
Laptop A mobile computer with a full-sized keyboard, flip-up monitor and space for built-in optical or floppy-disk storage drives. A laptop is designed to sit on your lap and you can therefore expect...
Satellite Laptop is nothing but a brand name for a particular range of Toshiba laptops. So there is no difference between a laptop and a satellite laptop.