Once you have chosen between stationary or portable you will have to understand the processor and RAM that each computer will come with. For this to matter you really need to know what you will be doing with your new computer. Do you want to do high end gaming or is it mostly for writing articles and checking social media accounts? The higher the numbers for the processor and RAM the more power and storage your computer will have.
For the fun stuff computers, especially laptops now come in a variety of colours so you can rock a bright red or purple machine or just stick to basic black. However you cut it, looking for a new computer can be time consuming so do some homework before you set out to the store and keep your budget in mind at all times.