Dell to offer alternating operating system to microsoft windows . dell offers one of the best and most diverse laptop on the market . dell is a excellent or great warranty as compare to other laptop . dell is a comfortable keyboards and long battery life . dell as most us based company do not give about worldwide service . dell is a very chip and expensive device in a now days . dell battery back up is very excellent and good as per my suggestions each and every person is to sell the dell laptop and computer