My computer has become really, really slow.?

Well its a fact that computers get worser with age. So if i were you i would replace it and get an Apple computer or something. Their is probobly endless details that are better than apples than in your Inspirin 9100. The the repair man would probobly charge you a hundered dollars or more, So why not just throw the thing out and get something good that will last you for a while ( and will work )