Most machines I use currently have SSDs for storage. While the speed boost is nice, SSDs are limited to a specific number of reads and writes per cell before they wear out. The number is usually very high and expected lifespan is 5+ years. Still, there are things you can do to make them last longer - and to do that, it's important to understand how they work. Check the link below for the information!
First, aside from when an SSD is brand new and contains no data, writing to an SSD is the process of erasing existing information from the flash memory cells and then programming new information onto them. No new information can be programmed to a cell unless the old data is first erased. For this reason, the process of writing to an SSD is often referred to as program/erase cycles or P/E cycles.