Here is an article just for computer 'techies'. Or, for 'wanna-be' techies like me who enjoys reading stuff like this. The article compares the performance of two different types of SSDs vs a HDD. Since I've used an SSD for the past few years with laptop computers, I'd forgotten how slow an HDD can be. A video in the article demonstrates the difference -- which is significant -- on just opening and using normal apps. No fancy graphs -- just dramatic results. If you're still using an HDD in your computer, this video may convince you to update to an SSD.
Jim Hamm