Can a laptop be used for a long time
Long time to open the computer, regardless of people or the computer will have some damage to the computer wear will be bigger, long down, will reduce the computer life.
Notebook, after all, is not a desktop, cooling effect is not so good, it is best not to use a long time, favorable to the protection of the computer.
If it is because of the use of demand, in the case of electricity can be a long time open
