Netbook, the word made by Intel company in February 2008, means cheap, smaller size of laptop much easier to move. It is a kind of computer that does basic jobs like web surfing and word processing. Netbook device is normally built for CPU that uses lower power, like the Intel Atom. Now there are many netbooks such as hp-mini and Asus Eee PC. More than 50 million netbooks will be released by 2011.