Here are some components that must be considered when buying a netbook or notebook

1. Processors
generally look for a new processor (NOT ALWAYS) is always better performance and power consumption

2. RAM
No problem with the RAM from a small congenital due to be upgraded itself. But sometimes RAM inherently cheaper than buying separately, so look well

3. VGA
Consider your needs for office or whether just for gaming / rendering / graphics. Of course the performance of onboard graphics card is not as good as a separate graphic card Performance will be but if you really need is endurance batteries onboard graphics card for longer durability standards, although their performance, but if you need for gaming or graphics work, you can choose a separate graphics card because of course separate performance better than onboard.

4. Hard Disk
Components are quite expensive to upgrade itself, although this is now the average is 40/80GB so do not too distracted from its capacity. But there are other things to be aware that could affect the performance of your notebook from the hard disk are the type of interface as well as rotation speed of the HD TSB.

5. BATTERIES
Find a large capacity which is generally in units of mAh xxxx, you have a simple analogy of a bathtub (battery) with 100liter capacity (capacity) while you need is one liter per minute (notebook power needs), then by all means will be exhausted within 100 minutes (the ability a notebook for battery life) well of course the easiest way other than reducing consumption of water so that water does not quickly run out is to use a larger tub capacity, right?

6. SCREEN
THIS CRUCIAL because what we see right now the screen display, but generally not much difference except the screen which the price premium for laptops like the Vaio with XBRITE where the backlight for the screen is not LED lights sudahdah wearing normal again. Generally it is divided based on the size of the screen diagonal, starting from 10,11,12,13,14,15,17,19,21 in inches. And there are two size ratio that is WIDE (16:9) with NON WIDE, WIDE, where it was meant for a wider screen than the NON WIDE but if measured length and height will be different, where WIDE it will be longer but shorter than the NON WIDE.