Where the two words came from
“Laptop” was the first widely used name for a portable computer that could sit on your lap. “Notebook” appeared later for models that were smaller and lighter, closer to the size of a paper notebook.
What the words mean now
As portable computers became thinner across the board, the distinction faded. A product one brand calls a notebook, another calls a laptop. HP and Lenovo use both words for machines that are the same size and weight.
What to compare when you shop
Ignore the label and check four things: weight, screen size, battery life and the processor. Those tell you how portable and how fast a machine is. Our reviews list all four for every model, and the buying guide explains what to aim for.