If you are planning to buy Laptop or Notebook then you must buy those product that which is really helpful and need you, dont buy like illiterate used your mind while purchasing laptop Because:-
If you are a Professional then you should buy Laptop for your needs Check you Processors and please dont confuse with Processor you just focus on their Speed. Think how much Hard disk you which necessary like 500 GB or 1 TB is also Sufficient. if your a designer then you should check how much Graphics card you were required. one of the most important their RAM memory you also choose 4 GB or more than 4 GB RAM loaded laptop which is also boost you laptop speed.
If you are not professional and you just purchase you laptop for entertainment then you can buy how much Secondary memory I.e Hard disk you need as on you needs. You can purchase above 4 GB Ram, You dont need to buy graphics card loaded laptop its little costlier, Companies already loaded Basic graphics are for a small to medium applications.
You can always prefer for their build quality, Specification and Price, and please beware to buying nice looking laptop/notebook. I always suggest for my friends to buy Dell.
Because Dell have best customer as well as their service centers are good. you are handle you laptop nicely you dont need to see service center also dell can provide you their service agent on one call their laptops are looking beautiful as well as rough and tough. I have experience for my Dell Inspirion N 5030 I bought my laptop Diwali of year 2010 and still I am not reach service center till date.