In the following video, Motley Fool tech and telecom analyst Andrew Tonner takes a look at Microsoft's (MSFT 0.41%) valuation vs. Apple's (AAPL 0.53%). In his comparison, he shows investors that Apple -- which has such strong growth prospects compared to Microsoft's headwinds both in the PC market and the mobile space -- should not be trading at a deep discount compared to Microsoft on a P/E basis. It just doesn't make sense. He highlights how overly bearish the market sentiment has gotten toward Apple lately and tells investors why this represents an incredible buying opportunity for the long run.