The device that you will choose depend on the reason of usage? If you are a business man, tablets will be suitable for you to monitor your work and if you are still a student, laptop will be more suitable for you to use because you can do your researches on and your homework too.
Also, if you are interested in reading knowing more culture, you need an E-book reader to enjoy your time, but for the whole family they can use desktop computer that can afford a lot of different types of work.
What if you don't use computers regularly! You should have a computer stick is a tiny device that can transform any HDMI TV or display into a complete computer. It's everything you love about a desktop computer in a device that fits in the palm of your hand.