The pc that I am using right now has been with me for over three years now and still in good condition. I personally did not know the exact specifications when I bought this. The salesman did a a very good job anyway and closed the deal knowing I have a little knowledge in terms of full specifications of pc. Now, I am aware already of where to buy the best computer system, pc or Industrial pc. My system runs as fast as when I bought it is still working well to date. I bet, by next year, my pc would not be as fast as it is now, so this means an upgrade or look for a new and latest system.