Of course, there are software factors as well. Malware and Spyware can bog down your system, and after a lot of use, temporary files can bog things down. Before upgrading hardware, you'll want to have a technician run a quick evaluation on your PC - it's possible a little cleanup can make all the difference in the world.
Otherwise, the next step is upgrading the RAM. RAM is usually relatively cheap, even to double or triple your existing RAM with faster, higher performance memory. Often the cost of the new RAM itself will be between $50 and $100, and more than likely less than that, and that's for a substantial increase, but it depends on your PC.
Is your computer running slow? Does it get bogged down by the time you have all of your day-to-day applications open? Contact us at 970-526-6499 for a quick evaluation to see if a simple, cost-effective upgrade will help you perform your job more effectively.