What is the difference between a laptop and notebook?

The terms laptop and notebook are often used interchangeably to refer to any mobile computer. Not everyone agrees on what the differences are between these two terms, or if any exist. However, the conventional difference between a laptop and notebook is that notebooks were so-named to differentiate this class of mobiles as ultra-light, ultra-thin, and highly portable, compared to original laptops that were comparatively cumbersome. With the advancement of mobile technology, laptops have evolved into what was previous considered a notebook, explaining why the terms have become interchangeable. Today's ultra-light mobiles that retain full operating systems and functionality are referred to as subnotebooks or ultraportables. Some models do not include a CD/DVD player, and can be used with an optional docking station to enhance features. The specifications that qualify a notebook to fall into this category can be somewhat arbitrary but in general the machine will be significantly smaller ...  more

None practically, only size. Either buy a real notebook with rubber and pencil or do the right thing and buy another laptop thus saving your eyesight, future repair bills and the annoyance (but pretty) so-called "notebook" which won't even go in your pocket.  more

There is no real difference. Some companies call their products laptops - others call them notebooks. Now Netbooks (N-E-T) are different. They are *much* smaller and lighter although less powerful. They have timy screens - like maybe 7 or 8 or 9 inches.  more

i'm pretty sure a laptop is just a standard 12 inch screened computer, while a notebook is usually a smaller form of a laptop, from 8 to 10 inch screens.  more