Notebook, or laptop, is a portable computer that normally have :
Screen size : 12 Inch and up
Processor : Intel Pentium Dual-Core,Core 2 Duo or AMD Turion X2
Graphics : Integrated or External Graphic Card, from Intel GMA x3100 to AMD Mobility HD 3870X2
Weight : 1.9kg and up
Netbook, a smaller variant of notebook, 1st poineered by Asus with their release of Asus Eee PC 700,and now laptop companies such as Acer and MSI released their own netbooks (Acer aspire one and MSI wind respectively), have :
Screen size : 12 Inch max
Processor : VIA C7 1.2GHz, Intel Atom N270 1.6GHz or AMD Geode 800MHz
1st, let’s compare the screen size. With notebook screen size normally hovers around 14.1 to 15.4 inch, you can have a good movie viewing pleasure and don’t have to squint your eyes just to see some text. With screen size 12 inch and lower, you might have a hard time typing documents in your netbook.
3rd, the graphic card. If your primary concern is playing games, you can skip the netbook altogether as their graphic are really really lame. Some claim that they install World of Warcraft inside their netbook, but with lame graphic card and small screen, how are you ever gonna enjoy playing that game. On the other hand, notebook have better graphic card than netbook even in the low-end section. They can handle World of Warcraft and other older games easily without breaking a sweat literally.
4th, the weight. This is where the netbook really shines. With their low weight (and small screen), they are truly fit the definition of portability. Thier weight are almost half of the notebook weight, which is a good thing if you’re not into bodybuilding. Coupled with their power adapter, the max weight might be only 1.5kg.
In the end, it all boils down to you. Which one you prefer the most. If you like to play games or watch movies, notebook is the way to go. If you surf the web more often and type short documents, netbook is you choice. Be warned that netbook keyboard is really small and not suitable for long-term typing.