Let's keep in mind before buying a PC :-
Primary thing is that make a decision that what type of uses your needs with computer, so they have certain things to be followed, low end, medium end, high end. Priority in these is medium and high end.
First take a it to your hardware, where the total PC’s performance depends on it, so check for a genuine hardware when you are buying, don’t do go for cheap and design, look for original and...