A notebook, also known as a laptop, is a portable computer. Before you buy a notebook, it is important to consider whether you plan to use the notebook mainly when traveling or in a place where you have access to mains power. If you mainly want to use the notebook while traveling, it is wise to choose a model that allows you to work for a long time without recharging, so with a special power-saving 'mobile' processor, a good battery and a screen that is not too large. If you mainly want to use your notebook somewhere where you can plug it into the wall socket, then it is better to choose a notebook with a normal processor and a normal battery, which saves a lot in the price and you do not need these functions anyway. Instead, take a larger screen that works and looks much better!