Random Access Memory, or RAM, is the memory your computer uses to operate programs. The more programs you have running at once, the more RAM you require. Having too little RAM will also cause your computer to run slowly. It's relatively simple to check your RAM. If you've been noticing performance issues with your computer, check how much RAM is installed and consult with a professional as to whether a RAM upgrade is in order.
Select "Start," then "Control Panel" to view the options that control your computer.
Select "Systems and Maintenance" and then "System" to view your installed RAM.
View the RAM installed. This measurement is either in megabytes, or MB, or gigabytes, or GB. The larger the number, the faster your computer runs.