Thinks to do while buy a laptop

Why a Laptop?
Is to buy a laptop or desktop..? is the question asked by a consumer to himself.this the time which price of laptop is continuosly decreasing.if you bought a laptop it has its own advatage and disadvantage.
If you need a big screen and contineous upgradation then desktop is better for you. the main reason to choose laptop by most of the people is its portability or mobility so it is more convenient for business and sales persons.
Laptop is also known as Notebook the main features of these are its weight,size,battery life,silent process,good quality display. normally notebook has weight of 3-4 kg. now variety of weights are avilable even when starting from 1.5 kg

In single battery charge it can work upto 1 to 3 hours.most of the notebooks are using Lithium iron battery if we are using every power saving options it can work upto 6 to 7 hours
Upgradation is not possible in laptop