I have never upgraded a computer in my life, I have no knowledge of what exactly I'd need to upgrade. My computer is only about 4/5 years old, my grandparents allowed children to freely play on it and since then it has become extremely slow. I am an avid gamer and would like to upgrade my PC into a gaming computer. I wanted to ask what would be the basic upgrades needed and how much that'd cost or should I just buy a whole new computer? I will have to put my computers make and model later as it is extremely late. If this isn't enough detail please tell me what I need to tell you.