Memory refers to the amount of space your computer uses to read and write data. The more it has, the faster it can do this. All programs have specific system requirements, including the minimum RAM (random access memory) needed to function properly. So finding out how much memory your computer has allows you to determine if an application you want to use is compatible with your computer.
Click the "Start" button, right-click "Computer," and then click "Properties" to launch the system dialog box. Alternatively, click the "Start" button, type "System" (without quotes) in the search box, and then click "System" from the search result list to launch the system dialog box.
Locate the "System" section. The type and amount of memory you are using is shown next to "Installed memory (RAM)." You may also see the amount of usable memory.
Close the system dialog box.