There are various types of computer memory, but what most people are concerned with is RAM. Random access memory is what allows you to quickly access enough memory for the applications you are running, rather than running them from the hard drive memory. If you do not have the RAM to support the needs of your applications, you will experience very slow processing times--if you can run the applications at all. This is why people routinely add RAM to their systems: so that they don't "out-use" their computers. The process is simple: you simply add memory chips into the slots on the motherboard. However, you need to ascertain the type of memory your system uses. This information will typically be in your manual. Some of the RAM types include SDRAM, SODIMM, and RAMBUS. These are simply different types of memory configurations. The most important thing to know is which type of RAM is compatible with your computer. When you buy the right memory and install it, your system should automatically acknowledge the upgrade. Every system will have a maximum memory that it can hold, so the most you want to buy is the difference between what the system can take and what you already have installed. If you are looking to buy a new system, make sure it can hold the memory you need to perform your favorite applications. Also, be aware that some systems can be upgraded one memory module at a time, while others need to be upgraded two or four at a time. | 
